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Finding the Fourth Proportional to 534,272.70, 800,728.65 and 218,372.70

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Solution

The fourth proportional to 534,272.70, 800,728.65 and 218,372.70 is: 327,280.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,272.70 : 800,728.65 = 218,372.70 : x
  2. Step 2: Convert to fraction form
    534,272.70/800,728.65 = 218,372.70/x
  3. Step 3: Cross multiply
    534,272.70x = 800,728.65 × 218,372.70
  4. Step 4: Simplify right side
    534,272.70x = 174,857,277,267.86
  5. Step 5: Solve for x
    x = 174,857,277,267.86/534,272.70
  6. Step 6: Final answer
    x = 327,280.95

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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.