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Finding the Fourth Proportional to 620,002.20, 930,132.90 and 199,320.60

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Solution

The fourth proportional to 620,002.20, 930,132.90 and 199,320.60 is: 299,022.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,002.20 : 930,132.90 = 199,320.60 : x
  2. Step 2: Convert to fraction form
    620,002.20/930,132.90 = 199,320.60/x
  3. Step 3: Cross multiply
    620,002.20x = 930,132.90 × 199,320.60
  4. Step 4: Simplify right side
    620,002.20x = 185,394,647,707.74
  5. Step 5: Solve for x
    x = 185,394,647,707.74/620,002.20
  6. Step 6: Final answer
    x = 299,022.56

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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.