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Finding the Fourth Proportional to 373.31, 559.34 and 243.12

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Solution

The fourth proportional to 373.31, 559.34 and 243.12 is: 364.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.31 : 559.34 = 243.12 : x
  2. Step 2: Convert to fraction form
    373.31/559.34 = 243.12/x
  3. Step 3: Cross multiply
    373.31x = 559.34 × 243.12
  4. Step 4: Simplify right side
    373.31x = 135,986.41
  5. Step 5: Solve for x
    x = 135,986.41/373.31
  6. Step 6: Final answer
    x = 364.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.