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Finding the Fourth Proportional to 374.13, 516.55 and 234.46

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Solution

The fourth proportional to 374.13, 516.55 and 234.46 is: 323.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    374.13 : 516.55 = 234.46 : x
  2. Step 2: Convert to fraction form
    374.13/516.55 = 234.46/x
  3. Step 3: Cross multiply
    374.13x = 516.55 × 234.46
  4. Step 4: Simplify right side
    374.13x = 121,110.31
  5. Step 5: Solve for x
    x = 121,110.31/374.13
  6. Step 6: Final answer
    x = 323.71

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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.