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Finding the Fourth Proportional to 363,951.70, 545,927.55 and 313,213.30

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Solution

The fourth proportional to 363,951.70, 545,927.55 and 313,213.30 is: 469,819.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,951.70 : 545,927.55 = 313,213.30 : x
  2. Step 2: Convert to fraction form
    363,951.70/545,927.55 = 313,213.30/x
  3. Step 3: Cross multiply
    363,951.70x = 545,927.55 × 313,213.30
  4. Step 4: Simplify right side
    363,951.70x = 170,991,769,496.42
  5. Step 5: Solve for x
    x = 170,991,769,496.42/363,951.70
  6. Step 6: Final answer
    x = 469,819.95

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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.