Home / 664,530.20-996,795.30-215,250.20

Finding the Fourth Proportional to 664,530.20, 996,795.30 and 215,250.20

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Solution

The fourth proportional to 664,530.20, 996,795.30 and 215,250.20 is: 322,875.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,530.20 : 996,795.30 = 215,250.20 : x
  2. Step 2: Convert to fraction form
    664,530.20/996,795.30 = 215,250.20/x
  3. Step 3: Cross multiply
    664,530.20x = 996,795.30 × 215,250.20
  4. Step 4: Simplify right side
    664,530.20x = 214,560,387,684.06
  5. Step 5: Solve for x
    x = 214,560,387,684.06/664,530.20
  6. Step 6: Final answer
    x = 322,875.30

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.