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Finding the Fourth Proportional to 290,265.72, 435,532.50 and 132,542.52

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Solution

The fourth proportional to 290,265.72, 435,532.50 and 132,542.52 is: 198,874.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,265.72 : 435,532.50 = 132,542.52 : x
  2. Step 2: Convert to fraction form
    290,265.72/435,532.50 = 132,542.52/x
  3. Step 3: Cross multiply
    290,265.72x = 435,532.50 × 132,542.52
  4. Step 4: Simplify right side
    290,265.72x = 57,726,575,091.90
  5. Step 5: Solve for x
    x = 57,726,575,091.90/290,265.72
  6. Step 6: Final answer
    x = 198,874.93

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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.