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Finding the Fourth Proportional to 493.68, 740.52 and 274.44

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Solution

The fourth proportional to 493.68, 740.52 and 274.44 is: 411.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    493.68 : 740.52 = 274.44 : x
  2. Step 2: Convert to fraction form
    493.68/740.52 = 274.44/x
  3. Step 3: Cross multiply
    493.68x = 740.52 × 274.44
  4. Step 4: Simplify right side
    493.68x = 203,228.31
  5. Step 5: Solve for x
    x = 203,228.31/493.68
  6. Step 6: Final answer
    x = 411.66

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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.