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Finding the Fourth Proportional to 217.08, 325.45 and 101.35

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Solution

The fourth proportional to 217.08, 325.45 and 101.35 is: 151.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    217.08 : 325.45 = 101.35 : x
  2. Step 2: Convert to fraction form
    217.08/325.45 = 101.35/x
  3. Step 3: Cross multiply
    217.08x = 325.45 × 101.35
  4. Step 4: Simplify right side
    217.08x = 32,984.89
  5. Step 5: Solve for x
    x = 32,984.89/217.08
  6. Step 6: Final answer
    x = 151.95

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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.