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Finding the Fourth Proportional to 373.24, 557.12 and 345.75

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Solution

The fourth proportional to 373.24, 557.12 and 345.75 is: 516.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.24 : 557.12 = 345.75 : x
  2. Step 2: Convert to fraction form
    373.24/557.12 = 345.75/x
  3. Step 3: Cross multiply
    373.24x = 557.12 × 345.75
  4. Step 4: Simplify right side
    373.24x = 192,625.10
  5. Step 5: Solve for x
    x = 192,625.10/373.24
  6. Step 6: Final answer
    x = 516.09

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.