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Finding the Fourth Proportional to 951.28, 1,426.86 and 334.94

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Solution

The fourth proportional to 951.28, 1,426.86 and 334.94 is: 502.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    951.28 : 1,426.86 = 334.94 : x
  2. Step 2: Convert to fraction form
    951.28/1,426.86 = 334.94/x
  3. Step 3: Cross multiply
    951.28x = 1,426.86 × 334.94
  4. Step 4: Simplify right side
    951.28x = 477,912.49
  5. Step 5: Solve for x
    x = 477,912.49/951.28
  6. Step 6: Final answer
    x = 502.39

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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.