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Finding the Fourth Proportional to 374.34, 516.42 and 226.86

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Solution

The fourth proportional to 374.34, 516.42 and 226.86 is: 312.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    374.34 : 516.42 = 226.86 : x
  2. Step 2: Convert to fraction form
    374.34/516.42 = 226.86/x
  3. Step 3: Cross multiply
    374.34x = 516.42 × 226.86
  4. Step 4: Simplify right side
    374.34x = 117,155.04
  5. Step 5: Solve for x
    x = 117,155.04/374.34
  6. Step 6: Final answer
    x = 312.96

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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.