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Finding the Fourth Proportional to 487,151.20, 730,710.33 and 171,599.86

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Solution

The fourth proportional to 487,151.20, 730,710.33 and 171,599.86 is: 257,393.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,151.20 : 730,710.33 = 171,599.86 : x
  2. Step 2: Convert to fraction form
    487,151.20/730,710.33 = 171,599.86/x
  3. Step 3: Cross multiply
    487,151.20x = 730,710.33 × 171,599.86
  4. Step 4: Simplify right side
    487,151.20x = 125,389,790,328.55
  5. Step 5: Solve for x
    x = 125,389,790,328.55/487,151.20
  6. Step 6: Final answer
    x = 257,393.99

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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.