Home / 457,691.24-686,528.22-142,141.16

Finding the Fourth Proportional to 457,691.24, 686,528.22 and 142,141.16

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Solution

The fourth proportional to 457,691.24, 686,528.22 and 142,141.16 is: 213,209.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,691.24 : 686,528.22 = 142,141.16 : x
  2. Step 2: Convert to fraction form
    457,691.24/686,528.22 = 142,141.16/x
  3. Step 3: Cross multiply
    457,691.24x = 686,528.22 × 142,141.16
  4. Step 4: Simplify right side
    457,691.24x = 97,583,917,563.54
  5. Step 5: Solve for x
    x = 97,583,917,563.54/457,691.24
  6. Step 6: Final answer
    x = 213,209.06

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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.