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Finding the Fourth Proportional to 169,229.70, 253,844.55 and 42,869.70

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Solution

The fourth proportional to 169,229.70, 253,844.55 and 42,869.70 is: 64,304.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,229.70 : 253,844.55 = 42,869.70 : x
  2. Step 2: Convert to fraction form
    169,229.70/253,844.55 = 42,869.70/x
  3. Step 3: Cross multiply
    169,229.70x = 253,844.55 × 42,869.70
  4. Step 4: Simplify right side
    169,229.70x = 10,882,239,705.14
  5. Step 5: Solve for x
    x = 10,882,239,705.14/169,229.70
  6. Step 6: Final answer
    x = 64,304.55

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1.5x scale

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.