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Finding the Fourth Proportional to 836.67, 1,254.97 and 251.67

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Solution

The fourth proportional to 836.67, 1,254.97 and 251.67 is: 377.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    836.67 : 1,254.97 = 251.67 : x
  2. Step 2: Convert to fraction form
    836.67/1,254.97 = 251.67/x
  3. Step 3: Cross multiply
    836.67x = 1,254.97 × 251.67
  4. Step 4: Simplify right side
    836.67x = 315,838.30
  5. Step 5: Solve for x
    x = 315,838.30/836.67
  6. Step 6: Final answer
    x = 377.49

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Half scale
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Double scale
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Similar ratio
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1.5x scale

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.