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Finding the Fourth Proportional to 486,630.20, 729,945.30 and 171,046.10

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Solution

The fourth proportional to 486,630.20, 729,945.30 and 171,046.10 is: 256,569.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,630.20 : 729,945.30 = 171,046.10 : x
  2. Step 2: Convert to fraction form
    486,630.20/729,945.30 = 171,046.10/x
  3. Step 3: Cross multiply
    486,630.20x = 729,945.30 × 171,046.10
  4. Step 4: Simplify right side
    486,630.20x = 124,854,296,778.33
  5. Step 5: Solve for x
    x = 124,854,296,778.33/486,630.20
  6. Step 6: Final answer
    x = 256,569.15

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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.