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Finding the Fourth Proportional to 292.28, 403.52 and 187.38

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Solution

The fourth proportional to 292.28, 403.52 and 187.38 is: 258.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    292.28 : 403.52 = 187.38 : x
  2. Step 2: Convert to fraction form
    292.28/403.52 = 187.38/x
  3. Step 3: Cross multiply
    292.28x = 403.52 × 187.38
  4. Step 4: Simplify right side
    292.28x = 75,610.64
  5. Step 5: Solve for x
    x = 75,610.64/292.28
  6. Step 6: Final answer
    x = 258.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.