Home / 217,531.82-326,284.56-129,346.52

Finding the Fourth Proportional to 217,531.82, 326,284.56 and 129,346.52

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Solution

The fourth proportional to 217,531.82, 326,284.56 and 129,346.52 is: 194,011.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,531.82 : 326,284.56 = 129,346.52 : x
  2. Step 2: Convert to fraction form
    217,531.82/326,284.56 = 129,346.52/x
  3. Step 3: Cross multiply
    217,531.82x = 326,284.56 × 129,346.52
  4. Step 4: Simplify right side
    217,531.82x = 42,203,770,734.31
  5. Step 5: Solve for x
    x = 42,203,770,734.31/217,531.82
  6. Step 6: Final answer
    x = 194,011.95

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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.