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Finding the Fourth Proportional to 373.68, 516.36 and 325.56

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Solution

The fourth proportional to 373.68, 516.36 and 325.56 is: 449.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.68 : 516.36 = 325.56 : x
  2. Step 2: Convert to fraction form
    373.68/516.36 = 325.56/x
  3. Step 3: Cross multiply
    373.68x = 516.36 × 325.56
  4. Step 4: Simplify right side
    373.68x = 168,106.16
  5. Step 5: Solve for x
    x = 168,106.16/373.68
  6. Step 6: Final answer
    x = 449.87

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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.