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Finding the Fourth Proportional to 542,280.11, 813,255.93 and 163,100.12

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Solution

The fourth proportional to 542,280.11, 813,255.93 and 163,100.12 is: 244,600.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,280.11 : 813,255.93 = 163,100.12 : x
  2. Step 2: Convert to fraction form
    542,280.11/813,255.93 = 163,100.12/x
  3. Step 3: Cross multiply
    542,280.11x = 813,255.93 × 163,100.12
  4. Step 4: Simplify right side
    542,280.11x = 132,642,135,707.43
  5. Step 5: Solve for x
    x = 132,642,135,707.43/542,280.11
  6. Step 6: Final answer
    x = 244,600.78

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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.