Home / 454,042.20-681,128.10-154,471.80

Finding the Fourth Proportional to 454,042.20, 681,128.10 and 154,471.80

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Solution

The fourth proportional to 454,042.20, 681,128.10 and 154,471.80 is: 231,729.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,042.20 : 681,128.10 = 154,471.80 : x
  2. Step 2: Convert to fraction form
    454,042.20/681,128.10 = 154,471.80/x
  3. Step 3: Cross multiply
    454,042.20x = 681,128.10 × 154,471.80
  4. Step 4: Simplify right side
    454,042.20x = 105,215,083,637.58
  5. Step 5: Solve for x
    x = 105,215,083,637.58/454,042.20
  6. Step 6: Final answer
    x = 231,729.75

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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.