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Finding the Fourth Proportional to 492,503.80, 738,869.82 and 155,577.88

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Solution

The fourth proportional to 492,503.80, 738,869.82 and 155,577.88 is: 233,402.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,503.80 : 738,869.82 = 155,577.88 : x
  2. Step 2: Convert to fraction form
    492,503.80/738,869.82 = 155,577.88/x
  3. Step 3: Cross multiply
    492,503.80x = 738,869.82 × 155,577.88
  4. Step 4: Simplify right side
    492,503.80x = 114,951,800,191.58
  5. Step 5: Solve for x
    x = 114,951,800,191.58/492,503.80
  6. Step 6: Final answer
    x = 233,402.87

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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.