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Finding the Fourth Proportional to 494.84, 742.41 and 234.92

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Solution

The fourth proportional to 494.84, 742.41 and 234.92 is: 352.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    494.84 : 742.41 = 234.92 : x
  2. Step 2: Convert to fraction form
    494.84/742.41 = 234.92/x
  3. Step 3: Cross multiply
    494.84x = 742.41 × 234.92
  4. Step 4: Simplify right side
    494.84x = 174,403.25
  5. Step 5: Solve for x
    x = 174,403.25/494.84
  6. Step 6: Final answer
    x = 352.45

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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.