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Finding the Fourth Proportional to 495.58, 742.60 and 187.26

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Solution

The fourth proportional to 495.58, 742.60 and 187.26 is: 280.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    495.58 : 742.60 = 187.26 : x
  2. Step 2: Convert to fraction form
    495.58/742.60 = 187.26/x
  3. Step 3: Cross multiply
    495.58x = 742.60 × 187.26
  4. Step 4: Simplify right side
    495.58x = 139,062.46
  5. Step 5: Solve for x
    x = 139,062.46/495.58
  6. Step 6: Final answer
    x = 280.61

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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.