Home / 217,502.18-326,240.28-67,721.39

Finding the Fourth Proportional to 217,502.18, 326,240.28 and 67,721.39

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Solution

The fourth proportional to 217,502.18, 326,240.28 and 67,721.39 is: 101,578.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,502.18 : 326,240.28 = 67,721.39 : x
  2. Step 2: Convert to fraction form
    217,502.18/326,240.28 = 67,721.39/x
  3. Step 3: Cross multiply
    217,502.18x = 326,240.28 × 67,721.39
  4. Step 4: Simplify right side
    217,502.18x = 22,093,443,604.39
  5. Step 5: Solve for x
    x = 22,093,443,604.39/217,502.18
  6. Step 6: Final answer
    x = 101,578.04

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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.