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Finding the Fourth Proportional to 272,281.38, 408,441.51 and 72,600.72

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Solution

The fourth proportional to 272,281.38, 408,441.51 and 72,600.72 is: 108,906.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,281.38 : 408,441.51 = 72,600.72 : x
  2. Step 2: Convert to fraction form
    272,281.38/408,441.51 = 72,600.72/x
  3. Step 3: Cross multiply
    272,281.38x = 408,441.51 × 72,600.72
  4. Step 4: Simplify right side
    272,281.38x = 29,653,147,703.89
  5. Step 5: Solve for x
    x = 29,653,147,703.89/272,281.38
  6. Step 6: Final answer
    x = 108,906.26

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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.