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Finding the Fourth Proportional to 492,171.38, 738,318.64 and 192,613.28

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Solution

The fourth proportional to 492,171.38, 738,318.64 and 192,613.28 is: 288,944.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,171.38 : 738,318.64 = 192,613.28 : x
  2. Step 2: Convert to fraction form
    492,171.38/738,318.64 = 192,613.28/x
  3. Step 3: Cross multiply
    492,171.38x = 738,318.64 × 192,613.28
  4. Step 4: Simplify right side
    492,171.38x = 142,209,974,935.54
  5. Step 5: Solve for x
    x = 142,209,974,935.54/492,171.38
  6. Step 6: Final answer
    x = 288,944.02

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1.5x scale

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.