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Finding the Fourth Proportional to 487,373.40, 731,060.10 and 171,862.20

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Solution

The fourth proportional to 487,373.40, 731,060.10 and 171,862.20 is: 257,793.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,373.40 : 731,060.10 = 171,862.20 : x
  2. Step 2: Convert to fraction form
    487,373.40/731,060.10 = 171,862.20/x
  3. Step 3: Cross multiply
    487,373.40x = 731,060.10 × 171,862.20
  4. Step 4: Simplify right side
    487,373.40x = 125,641,597,118.22
  5. Step 5: Solve for x
    x = 125,641,597,118.22/487,373.40
  6. Step 6: Final answer
    x = 257,793.30

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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.