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Finding the Fourth Proportional to 250.76, 376.24 and 129.08

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Solution

The fourth proportional to 250.76, 376.24 and 129.08 is: 193.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    250.76 : 376.24 = 129.08 : x
  2. Step 2: Convert to fraction form
    250.76/376.24 = 129.08/x
  3. Step 3: Cross multiply
    250.76x = 376.24 × 129.08
  4. Step 4: Simplify right side
    250.76x = 48,565.06
  5. Step 5: Solve for x
    x = 48,565.06/250.76
  6. Step 6: Final answer
    x = 193.67

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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.