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Finding the Fourth Proportional to 342,562.38, 472,715.39 and 189,591.30

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Solution

The fourth proportional to 342,562.38, 472,715.39 and 189,591.30 is: 261,624.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,562.38 : 472,715.39 = 189,591.30 : x
  2. Step 2: Convert to fraction form
    342,562.38/472,715.39 = 189,591.30/x
  3. Step 3: Cross multiply
    342,562.38x = 472,715.39 × 189,591.30
  4. Step 4: Simplify right side
    342,562.38x = 89,622,724,372.15
  5. Step 5: Solve for x
    x = 89,622,724,372.15/342,562.38
  6. Step 6: Final answer
    x = 261,624.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.