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Finding the Fourth Proportional to 458.99, 633.41 and 249.17

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Solution

The fourth proportional to 458.99, 633.41 and 249.17 is: 343.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    458.99 : 633.41 = 249.17 : x
  2. Step 2: Convert to fraction form
    458.99/633.41 = 249.17/x
  3. Step 3: Cross multiply
    458.99x = 633.41 × 249.17
  4. Step 4: Simplify right side
    458.99x = 157,822.36
  5. Step 5: Solve for x
    x = 157,822.36/458.99
  6. Step 6: Final answer
    x = 343.85

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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.