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Finding the Fourth Proportional to 202,178.60, 303,486.60 and 127,383.20

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Solution

The fourth proportional to 202,178.60, 303,486.60 and 127,383.20 is: 191,212.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,178.60 : 303,486.60 = 127,383.20 : x
  2. Step 2: Convert to fraction form
    202,178.60/303,486.60 = 127,383.20/x
  3. Step 3: Cross multiply
    202,178.60x = 303,486.60 × 127,383.20
  4. Step 4: Simplify right side
    202,178.60x = 38,659,094,265.12
  5. Step 5: Solve for x
    x = 38,659,094,265.12/202,178.60
  6. Step 6: Final answer
    x = 191,212.59

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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.