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Finding the Fourth Proportional to 373.23, 559.80 and 135.75

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Solution

The fourth proportional to 373.23, 559.80 and 135.75 is: 203.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.23 : 559.80 = 135.75 : x
  2. Step 2: Convert to fraction form
    373.23/559.80 = 135.75/x
  3. Step 3: Cross multiply
    373.23x = 559.80 × 135.75
  4. Step 4: Simplify right side
    373.23x = 75,992.85
  5. Step 5: Solve for x
    x = 75,992.85/373.23
  6. Step 6: Final answer
    x = 203.61

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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.