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Finding the Fourth Proportional to 169,449.89, 253,981.51 and 79,398.41

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Solution

The fourth proportional to 169,449.89, 253,981.51 and 79,398.41 is: 119,007.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,449.89 : 253,981.51 = 79,398.41 : x
  2. Step 2: Convert to fraction form
    169,449.89/253,981.51 = 79,398.41/x
  3. Step 3: Cross multiply
    169,449.89x = 253,981.51 × 79,398.41
  4. Step 4: Simplify right side
    169,449.89x = 20,165,726,595.00
  5. Step 5: Solve for x
    x = 20,165,726,595.00/169,449.89
  6. Step 6: Final answer
    x = 119,007.02

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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.