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Finding the Fourth Proportional to 225.96, 338.46 and 152.60

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Solution

The fourth proportional to 225.96, 338.46 and 152.60 is: 228.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    225.96 : 338.46 = 152.60 : x
  2. Step 2: Convert to fraction form
    225.96/338.46 = 152.60/x
  3. Step 3: Cross multiply
    225.96x = 338.46 × 152.60
  4. Step 4: Simplify right side
    225.96x = 51,647.30
  5. Step 5: Solve for x
    x = 51,647.30/225.96
  6. Step 6: Final answer
    x = 228.57

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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.