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Finding the Fourth Proportional to 304,081.40, 419,625.42 and 169,945.40

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Solution

The fourth proportional to 304,081.40, 419,625.42 and 169,945.40 is: 234,520.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,081.40 : 419,625.42 = 169,945.40 : x
  2. Step 2: Convert to fraction form
    304,081.40/419,625.42 = 169,945.40/x
  3. Step 3: Cross multiply
    304,081.40x = 419,625.42 × 169,945.40
  4. Step 4: Simplify right side
    304,081.40x = 71,313,409,852.07
  5. Step 5: Solve for x
    x = 71,313,409,852.07/304,081.40
  6. Step 6: Final answer
    x = 234,520.79

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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.