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Finding the Fourth Proportional to 493.88, 740.56 and 169.12

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Solution

The fourth proportional to 493.88, 740.56 and 169.12 is: 253.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    493.88 : 740.56 = 169.12 : x
  2. Step 2: Convert to fraction form
    493.88/740.56 = 169.12/x
  3. Step 3: Cross multiply
    493.88x = 740.56 × 169.12
  4. Step 4: Simplify right side
    493.88x = 125,243.51
  5. Step 5: Solve for x
    x = 125,243.51/493.88
  6. Step 6: Final answer
    x = 253.59

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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.