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Finding the Fourth Proportional to 250.87, 376.45 and 135.32

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Solution

The fourth proportional to 250.87, 376.45 and 135.32 is: 203.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    250.87 : 376.45 = 135.32 : x
  2. Step 2: Convert to fraction form
    250.87/376.45 = 135.32/x
  3. Step 3: Cross multiply
    250.87x = 376.45 × 135.32
  4. Step 4: Simplify right side
    250.87x = 50,939.33
  5. Step 5: Solve for x
    x = 50,939.33/250.87
  6. Step 6: Final answer
    x = 203.05

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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.