Home / 457,724.56-686,418.30-158,128.24

Finding the Fourth Proportional to 457,724.56, 686,418.30 and 158,128.24

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Solution

The fourth proportional to 457,724.56, 686,418.30 and 158,128.24 is: 237,134.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,724.56 : 686,418.30 = 158,128.24 : x
  2. Step 2: Convert to fraction form
    457,724.56/686,418.30 = 158,128.24/x
  3. Step 3: Cross multiply
    457,724.56x = 686,418.30 × 158,128.24
  4. Step 4: Simplify right side
    457,724.56x = 108,542,117,682.79
  5. Step 5: Solve for x
    x = 108,542,117,682.79/457,724.56
  6. Step 6: Final answer
    x = 237,134.14

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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.