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Finding the Fourth Proportional to 217,675.69, 326,126.81 and 185,761.89

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Solution

The fourth proportional to 217,675.69, 326,126.81 and 185,761.89 is: 278,312.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,675.69 : 326,126.81 = 185,761.89 : x
  2. Step 2: Convert to fraction form
    217,675.69/326,126.81 = 185,761.89/x
  3. Step 3: Cross multiply
    217,675.69x = 326,126.81 × 185,761.89
  4. Step 4: Simplify right side
    217,675.69x = 60,581,933,069.68
  5. Step 5: Solve for x
    x = 60,581,933,069.68/217,675.69
  6. Step 6: Final answer
    x = 278,312.81

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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.