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Finding the Fourth Proportional to 493.87, 740.76 and 169.24

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Solution

The fourth proportional to 493.87, 740.76 and 169.24 is: 253.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    493.87 : 740.76 = 169.24 : x
  2. Step 2: Convert to fraction form
    493.87/740.76 = 169.24/x
  3. Step 3: Cross multiply
    493.87x = 740.76 × 169.24
  4. Step 4: Simplify right side
    493.87x = 125,366.22
  5. Step 5: Solve for x
    x = 125,366.22/493.87
  6. Step 6: Final answer
    x = 253.84

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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.