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Finding the Fourth Proportional to 467.95, 645.72 and 268.76

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Solution

The fourth proportional to 467.95, 645.72 and 268.76 is: 370.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    467.95 : 645.72 = 268.76 : x
  2. Step 2: Convert to fraction form
    467.95/645.72 = 268.76/x
  3. Step 3: Cross multiply
    467.95x = 645.72 × 268.76
  4. Step 4: Simplify right side
    467.95x = 173,540.48
  5. Step 5: Solve for x
    x = 173,540.48/467.95
  6. Step 6: Final answer
    x = 370.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.