Home / 424,735.77-636,660.68-172,190.55

Finding the Fourth Proportional to 424,735.77, 636,660.68 and 172,190.55

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Solution

The fourth proportional to 424,735.77, 636,660.68 and 172,190.55 is: 258,106.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,735.77 : 636,660.68 = 172,190.55 : x
  2. Step 2: Convert to fraction form
    424,735.77/636,660.68 = 172,190.55/x
  3. Step 3: Cross multiply
    424,735.77x = 636,660.68 × 172,190.55
  4. Step 4: Simplify right side
    424,735.77x = 109,626,951,791.62
  5. Step 5: Solve for x
    x = 109,626,951,791.62/424,735.77
  6. Step 6: Final answer
    x = 258,106.24

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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.