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Finding the Fourth Proportional to 266,908.49, 399,948.01 and 168,205.13

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Solution

The fourth proportional to 266,908.49, 399,948.01 and 168,205.13 is: 252,046.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,908.49 : 399,948.01 = 168,205.13 : x
  2. Step 2: Convert to fraction form
    266,908.49/399,948.01 = 168,205.13/x
  3. Step 3: Cross multiply
    266,908.49x = 399,948.01 × 168,205.13
  4. Step 4: Simplify right side
    266,908.49x = 67,273,304,595.04
  5. Step 5: Solve for x
    x = 67,273,304,595.04/266,908.49
  6. Step 6: Final answer
    x = 252,046.33

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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.