Home / 492,718.10-739,077.15-137,731.55

Finding the Fourth Proportional to 492,718.10, 739,077.15 and 137,731.55

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Solution

The fourth proportional to 492,718.10, 739,077.15 and 137,731.55 is: 206,597.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,718.10 : 739,077.15 = 137,731.55 : x
  2. Step 2: Convert to fraction form
    492,718.10/739,077.15 = 137,731.55/x
  3. Step 3: Cross multiply
    492,718.10x = 739,077.15 × 137,731.55
  4. Step 4: Simplify right side
    492,718.10x = 101,794,241,439.08
  5. Step 5: Solve for x
    x = 101,794,241,439.08/492,718.10
  6. Step 6: Final answer
    x = 206,597.33

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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.