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Finding the Fourth Proportional to 373.79, 516.01 and 224.49

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Solution

The fourth proportional to 373.79, 516.01 and 224.49 is: 309.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.79 : 516.01 = 224.49 : x
  2. Step 2: Convert to fraction form
    373.79/516.01 = 224.49/x
  3. Step 3: Cross multiply
    373.79x = 516.01 × 224.49
  4. Step 4: Simplify right side
    373.79x = 115,837.98
  5. Step 5: Solve for x
    x = 115,837.98/373.79
  6. Step 6: Final answer
    x = 309.90

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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.