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Finding the Fourth Proportional to 272,350.89, 408,526.38 and 72,672.03

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Solution

The fourth proportional to 272,350.89, 408,526.38 and 72,672.03 is: 109,008.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,350.89 : 408,526.38 = 72,672.03 : x
  2. Step 2: Convert to fraction form
    272,350.89/408,526.38 = 72,672.03/x
  3. Step 3: Cross multiply
    272,350.89x = 408,526.38 × 72,672.03
  4. Step 4: Simplify right side
    272,350.89x = 29,688,441,343.15
  5. Step 5: Solve for x
    x = 29,688,441,343.15/272,350.89
  6. Step 6: Final answer
    x = 109,008.06

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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.