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Finding the Fourth Proportional to 304,115.49, 419,680.31 and 169,979.49

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Solution

The fourth proportional to 304,115.49, 419,680.31 and 169,979.49 is: 234,572.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,115.49 : 419,680.31 = 169,979.49 : x
  2. Step 2: Convert to fraction form
    304,115.49/419,680.31 = 169,979.49/x
  3. Step 3: Cross multiply
    304,115.49x = 419,680.31 × 169,979.49
  4. Step 4: Simplify right side
    304,115.49x = 71,337,044,206.94
  5. Step 5: Solve for x
    x = 71,337,044,206.94/304,115.49
  6. Step 6: Final answer
    x = 234,572.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.