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Finding the Fourth Proportional to 438,354.66, 656,950.73 and 225,113.96

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Solution

The fourth proportional to 438,354.66, 656,950.73 and 225,113.96 is: 337,372.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,354.66 : 656,950.73 = 225,113.96 : x
  2. Step 2: Convert to fraction form
    438,354.66/656,950.73 = 225,113.96/x
  3. Step 3: Cross multiply
    438,354.66x = 656,950.73 × 225,113.96
  4. Step 4: Simplify right side
    438,354.66x = 147,888,780,872.00
  5. Step 5: Solve for x
    x = 147,888,780,872.00/438,354.66
  6. Step 6: Final answer
    x = 337,372.44

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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.