Home / 457,280.25-685,955.86-137,407.15

Finding the Fourth Proportional to 457,280.25, 685,955.86 and 137,407.15

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Solution

The fourth proportional to 457,280.25, 685,955.86 and 137,407.15 is: 206,121.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,280.25 : 685,955.86 = 137,407.15 : x
  2. Step 2: Convert to fraction form
    457,280.25/685,955.86 = 137,407.15/x
  3. Step 3: Cross multiply
    457,280.25x = 685,955.86 × 137,407.15
  4. Step 4: Simplify right side
    457,280.25x = 94,255,235,631.58
  5. Step 5: Solve for x
    x = 94,255,235,631.58/457,280.25
  6. Step 6: Final answer
    x = 206,121.38

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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.