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Finding the Fourth Proportional to 195,996.60, 270,536.22 and 155,781.72

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Solution

The fourth proportional to 195,996.60, 270,536.22 and 155,781.72 is: 215,027.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,996.60 : 270,536.22 = 155,781.72 : x
  2. Step 2: Convert to fraction form
    195,996.60/270,536.22 = 155,781.72/x
  3. Step 3: Cross multiply
    195,996.60x = 270,536.22 × 155,781.72
  4. Step 4: Simplify right side
    195,996.60x = 42,144,597,673.90
  5. Step 5: Solve for x
    x = 42,144,597,673.90/195,996.60
  6. Step 6: Final answer
    x = 215,027.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.