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Finding the Fourth Proportional to 486,668.40, 730,002.60 and 131,737.20

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Solution

The fourth proportional to 486,668.40, 730,002.60 and 131,737.20 is: 197,605.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,668.40 : 730,002.60 = 131,737.20 : x
  2. Step 2: Convert to fraction form
    486,668.40/730,002.60 = 131,737.20/x
  3. Step 3: Cross multiply
    486,668.40x = 730,002.60 × 131,737.20
  4. Step 4: Simplify right side
    486,668.40x = 96,168,498,516.72
  5. Step 5: Solve for x
    x = 96,168,498,516.72/486,668.40
  6. Step 6: Final answer
    x = 197,605.80

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Similar ratio
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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.