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Finding the Fourth Proportional to 202,107.20, 303,410.40 and 127,227.20

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Solution

The fourth proportional to 202,107.20, 303,410.40 and 127,227.20 is: 190,997.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,107.20 : 303,410.40 = 127,227.20 : x
  2. Step 2: Convert to fraction form
    202,107.20/303,410.40 = 127,227.20/x
  3. Step 3: Cross multiply
    202,107.20x = 303,410.40 × 127,227.20
  4. Step 4: Simplify right side
    202,107.20x = 38,602,055,642.88
  5. Step 5: Solve for x
    x = 38,602,055,642.88/202,107.20
  6. Step 6: Final answer
    x = 190,997.92

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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.