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Finding the Fourth Proportional to 186,250.05, 279,380.21 and 68,009.49

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Solution

The fourth proportional to 186,250.05, 279,380.21 and 68,009.49 is: 102,016.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,250.05 : 279,380.21 = 68,009.49 : x
  2. Step 2: Convert to fraction form
    186,250.05/279,380.21 = 68,009.49/x
  3. Step 3: Cross multiply
    186,250.05x = 279,380.21 × 68,009.49
  4. Step 4: Simplify right side
    186,250.05x = 19,000,505,258.15
  5. Step 5: Solve for x
    x = 19,000,505,258.15/186,250.05
  6. Step 6: Final answer
    x = 102,016.11

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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.