Home / 437,631.60-656,447.40-157,177.20

Finding the Fourth Proportional to 437,631.60, 656,447.40 and 157,177.20

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Solution

The fourth proportional to 437,631.60, 656,447.40 and 157,177.20 is: 235,765.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,631.60 : 656,447.40 = 157,177.20 : x
  2. Step 2: Convert to fraction form
    437,631.60/656,447.40 = 157,177.20/x
  3. Step 3: Cross multiply
    437,631.60x = 656,447.40 × 157,177.20
  4. Step 4: Simplify right side
    437,631.60x = 103,178,564,279.28
  5. Step 5: Solve for x
    x = 103,178,564,279.28/437,631.60
  6. Step 6: Final answer
    x = 235,765.80

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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.