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Finding the Fourth Proportional to 418,064.49, 576,930.06 and 227,073.78

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Solution

The fourth proportional to 418,064.49, 576,930.06 and 227,073.78 is: 313,362.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,064.49 : 576,930.06 = 227,073.78 : x
  2. Step 2: Convert to fraction form
    418,064.49/576,930.06 = 227,073.78/x
  3. Step 3: Cross multiply
    418,064.49x = 576,930.06 × 227,073.78
  4. Step 4: Simplify right side
    418,064.49x = 131,005,689,519.83
  5. Step 5: Solve for x
    x = 131,005,689,519.83/418,064.49
  6. Step 6: Final answer
    x = 313,362.39

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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.