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Finding the Fourth Proportional to 259,726.96, 389,356.52 and 93,398

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Solution

The fourth proportional to 259,726.96, 389,356.52 and 93,398 is: 140,012.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,726.96 : 389,356.52 = 93,398 : x
  2. Step 2: Convert to fraction form
    259,726.96/389,356.52 = 93,398/x
  3. Step 3: Cross multiply
    259,726.96x = 389,356.52 × 93,398
  4. Step 4: Simplify right side
    259,726.96x = 36,365,120,254.96
  5. Step 5: Solve for x
    x = 36,365,120,254.96/259,726.96
  6. Step 6: Final answer
    x = 140,012.88

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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.