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Finding the Fourth Proportional to 217,323.30, 326,040.39 and 67,564.86

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Solution

The fourth proportional to 217,323.30, 326,040.39 and 67,564.86 is: 101,364.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,323.30 : 326,040.39 = 67,564.86 : x
  2. Step 2: Convert to fraction form
    217,323.30/326,040.39 = 67,564.86/x
  3. Step 3: Cross multiply
    217,323.30x = 326,040.39 × 67,564.86
  4. Step 4: Simplify right side
    217,323.30x = 22,028,873,304.70
  5. Step 5: Solve for x
    x = 22,028,873,304.70/217,323.30
  6. Step 6: Final answer
    x = 101,364.53

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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.