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Finding the Fourth Proportional to 202,073.20, 303,109.80 and 198,617.20

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Solution

The fourth proportional to 202,073.20, 303,109.80 and 198,617.20 is: 297,925.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,073.20 : 303,109.80 = 198,617.20 : x
  2. Step 2: Convert to fraction form
    202,073.20/303,109.80 = 198,617.20/x
  3. Step 3: Cross multiply
    202,073.20x = 303,109.80 × 198,617.20
  4. Step 4: Simplify right side
    202,073.20x = 60,202,819,768.56
  5. Step 5: Solve for x
    x = 60,202,819,768.56/202,073.20
  6. Step 6: Final answer
    x = 297,925.80

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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.