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Finding the Fourth Proportional to 373.54, 559.89 and 281.95

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Solution

The fourth proportional to 373.54, 559.89 and 281.95 is: 422.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.54 : 559.89 = 281.95 : x
  2. Step 2: Convert to fraction form
    373.54/559.89 = 281.95/x
  3. Step 3: Cross multiply
    373.54x = 559.89 × 281.95
  4. Step 4: Simplify right side
    373.54x = 157,860.99
  5. Step 5: Solve for x
    x = 157,860.99/373.54
  6. Step 6: Final answer
    x = 422.61

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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.