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Finding the Fourth Proportional to 344,793.80, 517,206.90 and 108,144.20

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Solution

The fourth proportional to 344,793.80, 517,206.90 and 108,144.20 is: 162,221.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,793.80 : 517,206.90 = 108,144.20 : x
  2. Step 2: Convert to fraction form
    344,793.80/517,206.90 = 108,144.20/x
  3. Step 3: Cross multiply
    344,793.80x = 517,206.90 × 108,144.20
  4. Step 4: Simplify right side
    344,793.80x = 55,932,926,434.98
  5. Step 5: Solve for x
    x = 55,932,926,434.98/344,793.80
  6. Step 6: Final answer
    x = 162,221.38

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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.