Home / 457,281.25-685,957.36-137,408.15

Finding the Fourth Proportional to 457,281.25, 685,957.36 and 137,408.15

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Solution

The fourth proportional to 457,281.25, 685,957.36 and 137,408.15 is: 206,122.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,281.25 : 685,957.36 = 137,408.15 : x
  2. Step 2: Convert to fraction form
    457,281.25/685,957.36 = 137,408.15/x
  3. Step 3: Cross multiply
    457,281.25x = 685,957.36 × 137,408.15
  4. Step 4: Simplify right side
    457,281.25x = 94,256,131,816.48
  5. Step 5: Solve for x
    x = 94,256,131,816.48/457,281.25
  6. Step 6: Final answer
    x = 206,122.89

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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.