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Finding the Fourth Proportional to 270,499.89, 405,786.77 and 112,691.46

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Solution

The fourth proportional to 270,499.89, 405,786.77 and 112,691.46 is: 169,052.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,499.89 : 405,786.77 = 112,691.46 : x
  2. Step 2: Convert to fraction form
    270,499.89/405,786.77 = 112,691.46/x
  3. Step 3: Cross multiply
    270,499.89x = 405,786.77 × 112,691.46
  4. Step 4: Simplify right side
    270,499.89x = 45,728,702,996.53
  5. Step 5: Solve for x
    x = 45,728,702,996.53/270,499.89
  6. Step 6: Final answer
    x = 169,052.58

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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.