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Finding the Fourth Proportional to 621,510.29, 932,262.77 and 172,229.87

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Solution

The fourth proportional to 621,510.29, 932,262.77 and 172,229.87 is: 258,344.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,510.29 : 932,262.77 = 172,229.87 : x
  2. Step 2: Convert to fraction form
    621,510.29/932,262.77 = 172,229.87/x
  3. Step 3: Cross multiply
    621,510.29x = 932,262.77 × 172,229.87
  4. Step 4: Simplify right side
    621,510.29x = 160,563,490,160.48
  5. Step 5: Solve for x
    x = 160,563,490,160.48/621,510.29
  6. Step 6: Final answer
    x = 258,344.06

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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.