Home / 457,292.46-685,974.18-137,419.36

Finding the Fourth Proportional to 457,292.46, 685,974.18 and 137,419.36

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Solution

The fourth proportional to 457,292.46, 685,974.18 and 137,419.36 is: 206,139.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,292.46 : 685,974.18 = 137,419.36 : x
  2. Step 2: Convert to fraction form
    457,292.46/685,974.18 = 137,419.36/x
  3. Step 3: Cross multiply
    457,292.46x = 685,974.18 × 137,419.36
  4. Step 4: Simplify right side
    457,292.46x = 94,266,132,792.12
  5. Step 5: Solve for x
    x = 94,266,132,792.12/457,292.46
  6. Step 6: Final answer
    x = 206,139.70

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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.