Home / 664,228.80-996,343.20-214,982.55

Finding the Fourth Proportional to 664,228.80, 996,343.20 and 214,982.55

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Solution

The fourth proportional to 664,228.80, 996,343.20 and 214,982.55 is: 322,473.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,228.80 : 996,343.20 = 214,982.55 : x
  2. Step 2: Convert to fraction form
    664,228.80/996,343.20 = 214,982.55/x
  3. Step 3: Cross multiply
    664,228.80x = 996,343.20 × 214,982.55
  4. Step 4: Simplify right side
    664,228.80x = 214,196,401,811.16
  5. Step 5: Solve for x
    x = 214,196,401,811.16/664,228.80
  6. Step 6: Final answer
    x = 322,473.83

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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.