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Finding the Fourth Proportional to 162,877.80, 244,972.80 and 145,819.20

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Solution

The fourth proportional to 162,877.80, 244,972.80 and 145,819.20 is: 219,316.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,877.80 : 244,972.80 = 145,819.20 : x
  2. Step 2: Convert to fraction form
    162,877.80/244,972.80 = 145,819.20/x
  3. Step 3: Cross multiply
    162,877.80x = 244,972.80 × 145,819.20
  4. Step 4: Simplify right side
    162,877.80x = 35,721,737,717.76
  5. Step 5: Solve for x
    x = 35,721,737,717.76/162,877.80
  6. Step 6: Final answer
    x = 219,316.19

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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.