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Finding the Fourth Proportional to 169,244.97, 253,801.83 and 90,316.14

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Solution

The fourth proportional to 169,244.97, 253,801.83 and 90,316.14 is: 135,439.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,244.97 : 253,801.83 = 90,316.14 : x
  2. Step 2: Convert to fraction form
    169,244.97/253,801.83 = 90,316.14/x
  3. Step 3: Cross multiply
    169,244.97x = 253,801.83 × 90,316.14
  4. Step 4: Simplify right side
    169,244.97x = 22,922,401,610.54
  5. Step 5: Solve for x
    x = 22,922,401,610.54/169,244.97
  6. Step 6: Final answer
    x = 135,439.19

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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.