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Finding the Fourth Proportional to 500,087.80, 750,131.70 and 200,614.60

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Solution

The fourth proportional to 500,087.80, 750,131.70 and 200,614.60 is: 300,921.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,087.80 : 750,131.70 = 200,614.60 : x
  2. Step 2: Convert to fraction form
    500,087.80/750,131.70 = 200,614.60/x
  3. Step 3: Cross multiply
    500,087.80x = 750,131.70 × 200,614.60
  4. Step 4: Simplify right side
    500,087.80x = 150,487,370,942.82
  5. Step 5: Solve for x
    x = 150,487,370,942.82/500,087.80
  6. Step 6: Final answer
    x = 300,921.90

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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.