Home / 217,583.55-326,375.33-137,867.40

Finding the Fourth Proportional to 217,583.55, 326,375.33 and 137,867.40

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Solution

The fourth proportional to 217,583.55, 326,375.33 and 137,867.40 is: 206,801.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,583.55 : 326,375.33 = 137,867.40 : x
  2. Step 2: Convert to fraction form
    217,583.55/326,375.33 = 137,867.40/x
  3. Step 3: Cross multiply
    217,583.55x = 326,375.33 × 137,867.40
  4. Step 4: Simplify right side
    217,583.55x = 44,996,517,481.91
  5. Step 5: Solve for x
    x = 44,996,517,481.91/217,583.55
  6. Step 6: Final answer
    x = 206,801.10

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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.