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Finding the Fourth Proportional to 374.39, 516.67 and 217.04

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Solution

The fourth proportional to 374.39, 516.67 and 217.04 is: 299.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    374.39 : 516.67 = 217.04 : x
  2. Step 2: Convert to fraction form
    374.39/516.67 = 217.04/x
  3. Step 3: Cross multiply
    374.39x = 516.67 × 217.04
  4. Step 4: Simplify right side
    374.39x = 112,138.06
  5. Step 5: Solve for x
    x = 112,138.06/374.39
  6. Step 6: Final answer
    x = 299.52

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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.