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Finding the Fourth Proportional to 202,031.20, 303,046.80 and 123,299.20

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Solution

The fourth proportional to 202,031.20, 303,046.80 and 123,299.20 is: 184,948.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,031.20 : 303,046.80 = 123,299.20 : x
  2. Step 2: Convert to fraction form
    202,031.20/303,046.80 = 123,299.20/x
  3. Step 3: Cross multiply
    202,031.20x = 303,046.80 × 123,299.20
  4. Step 4: Simplify right side
    202,031.20x = 37,365,428,002.56
  5. Step 5: Solve for x
    x = 37,365,428,002.56/202,031.20
  6. Step 6: Final answer
    x = 184,948.80

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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.