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Finding the Fourth Proportional to 305,570.65, 421,679.44 and 169,604.26

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Solution

The fourth proportional to 305,570.65, 421,679.44 and 169,604.26 is: 234,049.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,570.65 : 421,679.44 = 169,604.26 : x
  2. Step 2: Convert to fraction form
    305,570.65/421,679.44 = 169,604.26/x
  3. Step 3: Cross multiply
    305,570.65x = 421,679.44 × 169,604.26
  4. Step 4: Simplify right side
    305,570.65x = 71,518,629,378.41
  5. Step 5: Solve for x
    x = 71,518,629,378.41/305,570.65
  6. Step 6: Final answer
    x = 234,049.41

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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.