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Finding the Fourth Proportional to 305,594.08, 421,769.77 and 169,672.03

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Solution

The fourth proportional to 305,594.08, 421,769.77 and 169,672.03 is: 234,175.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,594.08 : 421,769.77 = 169,672.03 : x
  2. Step 2: Convert to fraction form
    305,594.08/421,769.77 = 169,672.03/x
  3. Step 3: Cross multiply
    305,594.08x = 421,769.77 × 169,672.03
  4. Step 4: Simplify right side
    305,594.08x = 71,562,531,589.93
  5. Step 5: Solve for x
    x = 71,562,531,589.93/305,594.08
  6. Step 6: Final answer
    x = 234,175.13

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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.