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Finding the Fourth Proportional to 272,351.62, 408,527.48 and 72,672.76

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Solution

The fourth proportional to 272,351.62, 408,527.48 and 72,672.76 is: 109,009.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,351.62 : 408,527.48 = 72,672.76 : x
  2. Step 2: Convert to fraction form
    272,351.62/408,527.48 = 72,672.76/x
  3. Step 3: Cross multiply
    272,351.62x = 408,527.48 × 72,672.76
  4. Step 4: Simplify right side
    272,351.62x = 29,688,819,507.44
  5. Step 5: Solve for x
    x = 29,688,819,507.44/272,351.62
  6. Step 6: Final answer
    x = 109,009.15

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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.