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Finding the Fourth Proportional to 186,249.80, 279,379.83 and 68,009.24

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Solution

The fourth proportional to 186,249.80, 279,379.83 and 68,009.24 is: 102,015.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,249.80 : 279,379.83 = 68,009.24 : x
  2. Step 2: Convert to fraction form
    186,249.80/279,379.83 = 68,009.24/x
  3. Step 3: Cross multiply
    186,249.80x = 279,379.83 × 68,009.24
  4. Step 4: Simplify right side
    186,249.80x = 19,000,409,909.63
  5. Step 5: Solve for x
    x = 19,000,409,909.63/186,249.80
  6. Step 6: Final answer
    x = 102,015.73

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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.