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Finding the Fourth Proportional to 217,089.28, 325,680.72 and 67,326.58

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Solution

The fourth proportional to 217,089.28, 325,680.72 and 67,326.58 is: 101,004.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,089.28 : 325,680.72 = 67,326.58 : x
  2. Step 2: Convert to fraction form
    217,089.28/325,680.72 = 67,326.58/x
  3. Step 3: Cross multiply
    217,089.28x = 325,680.72 × 67,326.58
  4. Step 4: Simplify right side
    217,089.28x = 21,926,969,049.54
  5. Step 5: Solve for x
    x = 21,926,969,049.54/217,089.28
  6. Step 6: Final answer
    x = 101,004.38

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1.5x scale

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.