Home / 492,306.55-738,394.20-137,290.84

Finding the Fourth Proportional to 492,306.55, 738,394.20 and 137,290.84

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Solution

The fourth proportional to 492,306.55, 738,394.20 and 137,290.84 is: 205,917.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,306.55 : 738,394.20 = 137,290.84 : x
  2. Step 2: Convert to fraction form
    492,306.55/738,394.20 = 137,290.84/x
  3. Step 3: Cross multiply
    492,306.55x = 738,394.20 × 137,290.84
  4. Step 4: Simplify right side
    492,306.55x = 101,374,758,123.14
  5. Step 5: Solve for x
    x = 101,374,758,123.14/492,306.55
  6. Step 6: Final answer
    x = 205,917.96

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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.