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Finding the Fourth Proportional to 437,387.55, 656,281.23 and 197,565.57

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Solution

The fourth proportional to 437,387.55, 656,281.23 and 197,565.57 is: 296,438.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,387.55 : 656,281.23 = 197,565.57 : x
  2. Step 2: Convert to fraction form
    437,387.55/656,281.23 = 197,565.57/x
  3. Step 3: Cross multiply
    437,387.55x = 656,281.23 × 197,565.57
  4. Step 4: Simplify right side
    437,387.55x = 129,658,575,285.25
  5. Step 5: Solve for x
    x = 129,658,575,285.25/437,387.55
  6. Step 6: Final answer
    x = 296,438.65

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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.