Home / 664,356.30-996,631.65-215,000.70

Finding the Fourth Proportional to 664,356.30, 996,631.65 and 215,000.70

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Solution

The fourth proportional to 664,356.30, 996,631.65 and 215,000.70 is: 322,532.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,356.30 : 996,631.65 = 215,000.70 : x
  2. Step 2: Convert to fraction form
    664,356.30/996,631.65 = 215,000.70/x
  3. Step 3: Cross multiply
    664,356.30x = 996,631.65 × 215,000.70
  4. Step 4: Simplify right side
    664,356.30x = 214,276,502,392.16
  5. Step 5: Solve for x
    x = 214,276,502,392.16/664,356.30
  6. Step 6: Final answer
    x = 322,532.51

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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.