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Finding the Fourth Proportional to 474.98, 655.45 and 265.17

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Solution

The fourth proportional to 474.98, 655.45 and 265.17 is: 365.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    474.98 : 655.45 = 265.17 : x
  2. Step 2: Convert to fraction form
    474.98/655.45 = 265.17/x
  3. Step 3: Cross multiply
    474.98x = 655.45 × 265.17
  4. Step 4: Simplify right side
    474.98x = 173,805.68
  5. Step 5: Solve for x
    x = 173,805.68/474.98
  6. Step 6: Final answer
    x = 365.92

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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.