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Finding the Fourth Proportional to 374.56, 516.89 and 234.58

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Solution

The fourth proportional to 374.56, 516.89 and 234.58 is: 323.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    374.56 : 516.89 = 234.58 : x
  2. Step 2: Convert to fraction form
    374.56/516.89 = 234.58/x
  3. Step 3: Cross multiply
    374.56x = 516.89 × 234.58
  4. Step 4: Simplify right side
    374.56x = 121,252.06
  5. Step 5: Solve for x
    x = 121,252.06/374.56
  6. Step 6: Final answer
    x = 323.72

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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.