Home / 275,130.38-379,518.66-172,993.97

Finding the Fourth Proportional to 275,130.38, 379,518.66 and 172,993.97

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Solution

The fourth proportional to 275,130.38, 379,518.66 and 172,993.97 is: 238,630.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,130.38 : 379,518.66 = 172,993.97 : x
  2. Step 2: Convert to fraction form
    275,130.38/379,518.66 = 172,993.97/x
  3. Step 3: Cross multiply
    275,130.38x = 379,518.66 × 172,993.97
  4. Step 4: Simplify right side
    275,130.38x = 65,654,439,682.48
  5. Step 5: Solve for x
    x = 65,654,439,682.48/275,130.38
  6. Step 6: Final answer
    x = 238,630.28

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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.