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Finding the Fourth Proportional to 395.18, 592.78 and 121.27

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Solution

The fourth proportional to 395.18, 592.78 and 121.27 is: 181.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    395.18 : 592.78 = 121.27 : x
  2. Step 2: Convert to fraction form
    395.18/592.78 = 121.27/x
  3. Step 3: Cross multiply
    395.18x = 592.78 × 121.27
  4. Step 4: Simplify right side
    395.18x = 71,883.47
  5. Step 5: Solve for x
    x = 71,883.47/395.18
  6. Step 6: Final answer
    x = 181.90

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.