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Finding the Fourth Proportional to 229,889.78, 344,892.99 and 72,119.60

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Solution

The fourth proportional to 229,889.78, 344,892.99 and 72,119.60 is: 108,197.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,889.78 : 344,892.99 = 72,119.60 : x
  2. Step 2: Convert to fraction form
    229,889.78/344,892.99 = 72,119.60/x
  3. Step 3: Cross multiply
    229,889.78x = 344,892.99 × 72,119.60
  4. Step 4: Simplify right side
    229,889.78x = 24,873,544,481.60
  5. Step 5: Solve for x
    x = 24,873,544,481.60/229,889.78
  6. Step 6: Final answer
    x = 108,197.70

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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.