Home / 217,687.43-326,657.25-91,316.39

Finding the Fourth Proportional to 217,687.43, 326,657.25 and 91,316.39

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Solution

The fourth proportional to 217,687.43, 326,657.25 and 91,316.39 is: 137,027.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,687.43 : 326,657.25 = 91,316.39 : x
  2. Step 2: Convert to fraction form
    217,687.43/326,657.25 = 91,316.39/x
  3. Step 3: Cross multiply
    217,687.43x = 326,657.25 × 91,316.39
  4. Step 4: Simplify right side
    217,687.43x = 29,829,159,204.04
  5. Step 5: Solve for x
    x = 29,829,159,204.04/217,687.43
  6. Step 6: Final answer
    x = 137,027.47

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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.