Home / 275,147.15-379,542.20-173,010.90

Finding the Fourth Proportional to 275,147.15, 379,542.20 and 173,010.90

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Solution

The fourth proportional to 275,147.15, 379,542.20 and 173,010.90 is: 238,653.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,147.15 : 379,542.20 = 173,010.90 : x
  2. Step 2: Convert to fraction form
    275,147.15/379,542.20 = 173,010.90/x
  3. Step 3: Cross multiply
    275,147.15x = 379,542.20 × 173,010.90
  4. Step 4: Simplify right side
    275,147.15x = 65,664,936,744.93
  5. Step 5: Solve for x
    x = 65,664,936,744.93/275,147.15
  6. Step 6: Final answer
    x = 238,653.89

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1.5x scale

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.