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Finding the Fourth Proportional to 363,818.70, 545,728.05 and 311,330.70

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Solution

The fourth proportional to 363,818.70, 545,728.05 and 311,330.70 is: 466,996.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,818.70 : 545,728.05 = 311,330.70 : x
  2. Step 2: Convert to fraction form
    363,818.70/545,728.05 = 311,330.70/x
  3. Step 3: Cross multiply
    363,818.70x = 545,728.05 × 311,330.70
  4. Step 4: Simplify right side
    363,818.70x = 169,901,895,816.14
  5. Step 5: Solve for x
    x = 169,901,895,816.14/363,818.70
  6. Step 6: Final answer
    x = 466,996.05

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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.