Home / 274,540.05-379,002.86-172,621.58

Finding the Fourth Proportional to 274,540.05, 379,002.86 and 172,621.58

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Solution

The fourth proportional to 274,540.05, 379,002.86 and 172,621.58 is: 238,304.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,540.05 : 379,002.86 = 172,621.58 : x
  2. Step 2: Convert to fraction form
    274,540.05/379,002.86 = 172,621.58/x
  3. Step 3: Cross multiply
    274,540.05x = 379,002.86 × 172,621.58
  4. Step 4: Simplify right side
    274,540.05x = 65,424,069,759.60
  5. Step 5: Solve for x
    x = 65,424,069,759.60/274,540.05
  6. Step 6: Final answer
    x = 238,304.28

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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.