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Finding the Fourth Proportional to 468.17, 645.94 and 269

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Solution

The fourth proportional to 468.17, 645.94 and 269 is: 371.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    468.17 : 645.94 = 269 : x
  2. Step 2: Convert to fraction form
    468.17/645.94 = 269/x
  3. Step 3: Cross multiply
    468.17x = 645.94 × 269
  4. Step 4: Simplify right side
    468.17x = 173,757.86
  5. Step 5: Solve for x
    x = 173,757.86/468.17
  6. Step 6: Final answer
    x = 371.14

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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.