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Finding the Fourth Proportional to 305,152.44, 421,110.30 and 169,185.96

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Solution

The fourth proportional to 305,152.44, 421,110.30 and 169,185.96 is: 233,476.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,152.44 : 421,110.30 = 169,185.96 : x
  2. Step 2: Convert to fraction form
    305,152.44/421,110.30 = 169,185.96/x
  3. Step 3: Cross multiply
    305,152.44x = 421,110.30 × 169,185.96
  4. Step 4: Simplify right side
    305,152.44x = 71,245,950,371.39
  5. Step 5: Solve for x
    x = 71,245,950,371.39/305,152.44
  6. Step 6: Final answer
    x = 233,476.59

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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.