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Finding the Fourth Proportional to 305,568.82, 421,677.09 and 169,598.79

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Solution

The fourth proportional to 305,568.82, 421,677.09 and 169,598.79 is: 234,041.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,568.82 : 421,677.09 = 169,598.79 : x
  2. Step 2: Convert to fraction form
    305,568.82/421,677.09 = 169,598.79/x
  3. Step 3: Cross multiply
    305,568.82x = 421,677.09 × 169,598.79
  4. Step 4: Simplify right side
    305,568.82x = 71,515,924,234.72
  5. Step 5: Solve for x
    x = 71,515,924,234.72/305,568.82
  6. Step 6: Final answer
    x = 234,041.96

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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.