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Finding the Fourth Proportional to 202,279.20, 303,418.80 and 83,938.20

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Solution

The fourth proportional to 202,279.20, 303,418.80 and 83,938.20 is: 125,907.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,279.20 : 303,418.80 = 83,938.20 : x
  2. Step 2: Convert to fraction form
    202,279.20/303,418.80 = 83,938.20/x
  3. Step 3: Cross multiply
    202,279.20x = 303,418.80 × 83,938.20
  4. Step 4: Simplify right side
    202,279.20x = 25,468,427,918.16
  5. Step 5: Solve for x
    x = 25,468,427,918.16/202,279.20
  6. Step 6: Final answer
    x = 125,907.30

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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.