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Finding the Fourth Proportional to 263.60, 395.46 and 101.28

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Solution

The fourth proportional to 263.60, 395.46 and 101.28 is: 151.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.60 : 395.46 = 101.28 : x
  2. Step 2: Convert to fraction form
    263.60/395.46 = 101.28/x
  3. Step 3: Cross multiply
    263.60x = 395.46 × 101.28
  4. Step 4: Simplify right side
    263.60x = 40,052.19
  5. Step 5: Solve for x
    x = 40,052.19/263.60
  6. Step 6: Final answer
    x = 151.94

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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.