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Finding the Fourth Proportional to 417.68, 626.66 and 201.11

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Solution

The fourth proportional to 417.68, 626.66 and 201.11 is: 301.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    417.68 : 626.66 = 201.11 : x
  2. Step 2: Convert to fraction form
    417.68/626.66 = 201.11/x
  3. Step 3: Cross multiply
    417.68x = 626.66 × 201.11
  4. Step 4: Simplify right side
    417.68x = 126,023.45
  5. Step 5: Solve for x
    x = 126,023.45/417.68
  6. Step 6: Final answer
    x = 301.73

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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.