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Finding the Fourth Proportional to 373.85, 560.58 and 113.78

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Solution

The fourth proportional to 373.85, 560.58 and 113.78 is: 170.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.85 : 560.58 = 113.78 : x
  2. Step 2: Convert to fraction form
    373.85/560.58 = 113.78/x
  3. Step 3: Cross multiply
    373.85x = 560.58 × 113.78
  4. Step 4: Simplify right side
    373.85x = 63,779.99
  5. Step 5: Solve for x
    x = 63,779.99/373.85
  6. Step 6: Final answer
    x = 170.61

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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.