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Finding the Fourth Proportional to 272,892.70, 409,339.05 and 123,301.90

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Solution

The fourth proportional to 272,892.70, 409,339.05 and 123,301.90 is: 184,952.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,892.70 : 409,339.05 = 123,301.90 : x
  2. Step 2: Convert to fraction form
    272,892.70/409,339.05 = 123,301.90/x
  3. Step 3: Cross multiply
    272,892.70x = 409,339.05 × 123,301.90
  4. Step 4: Simplify right side
    272,892.70x = 50,472,282,609.20
  5. Step 5: Solve for x
    x = 50,472,282,609.20/272,892.70
  6. Step 6: Final answer
    x = 184,952.85

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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.