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Finding the Fourth Proportional to 406,960.80, 610,732.80 and 229,279.20

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Solution

The fourth proportional to 406,960.80, 610,732.80 and 229,279.20 is: 344,083.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,960.80 : 610,732.80 = 229,279.20 : x
  2. Step 2: Convert to fraction form
    406,960.80/610,732.80 = 229,279.20/x
  3. Step 3: Cross multiply
    406,960.80x = 610,732.80 × 229,279.20
  4. Step 4: Simplify right side
    406,960.80x = 140,028,327,797.76
  5. Step 5: Solve for x
    x = 140,028,327,797.76/406,960.80
  6. Step 6: Final answer
    x = 344,083.09

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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.