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Finding the Fourth Proportional to 500,086.80, 750,130.20 and 200,613.60

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Solution

The fourth proportional to 500,086.80, 750,130.20 and 200,613.60 is: 300,920.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,086.80 : 750,130.20 = 200,613.60 : x
  2. Step 2: Convert to fraction form
    500,086.80/750,130.20 = 200,613.60/x
  3. Step 3: Cross multiply
    500,086.80x = 750,130.20 × 200,613.60
  4. Step 4: Simplify right side
    500,086.80x = 150,486,319,890.72
  5. Step 5: Solve for x
    x = 150,486,319,890.72/500,086.80
  6. Step 6: Final answer
    x = 300,920.40

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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.