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Finding the Fourth Proportional to 951.28, 1,426.58 and 334.86

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Solution

The fourth proportional to 951.28, 1,426.58 and 334.86 is: 502.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    951.28 : 1,426.58 = 334.86 : x
  2. Step 2: Convert to fraction form
    951.28/1,426.58 = 334.86/x
  3. Step 3: Cross multiply
    951.28x = 1,426.58 × 334.86
  4. Step 4: Simplify right side
    951.28x = 477,704.58
  5. Step 5: Solve for x
    x = 477,704.58/951.28
  6. Step 6: Final answer
    x = 502.17

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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.