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Finding the Fourth Proportional to 495.76, 742.90 and 374.11

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Solution

The fourth proportional to 495.76, 742.90 and 374.11 is: 560.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    495.76 : 742.90 = 374.11 : x
  2. Step 2: Convert to fraction form
    495.76/742.90 = 374.11/x
  3. Step 3: Cross multiply
    495.76x = 742.90 × 374.11
  4. Step 4: Simplify right side
    495.76x = 277,922.60
  5. Step 5: Solve for x
    x = 277,922.60/495.76
  6. Step 6: Final answer
    x = 560.60

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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.