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Finding the Fourth Proportional to 479.03, 660.96 and 374.12

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Solution

The fourth proportional to 479.03, 660.96 and 374.12 is: 516.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    479.03 : 660.96 = 374.12 : x
  2. Step 2: Convert to fraction form
    479.03/660.96 = 374.12/x
  3. Step 3: Cross multiply
    479.03x = 660.96 × 374.12
  4. Step 4: Simplify right side
    479.03x = 247,277.53
  5. Step 5: Solve for x
    x = 247,277.53/479.03
  6. Step 6: Final answer
    x = 516.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.