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Finding the Fourth Proportional to 493.59, 740.48 and 185.49

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Solution

The fourth proportional to 493.59, 740.48 and 185.49 is: 278.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    493.59 : 740.48 = 185.49 : x
  2. Step 2: Convert to fraction form
    493.59/740.48 = 185.49/x
  3. Step 3: Cross multiply
    493.59x = 740.48 × 185.49
  4. Step 4: Simplify right side
    493.59x = 137,350.71
  5. Step 5: Solve for x
    x = 137,350.71/493.59
  6. Step 6: Final answer
    x = 278.27

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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.