Home / 305,259.06-421,229.67-169,292.59

Finding the Fourth Proportional to 305,259.06, 421,229.67 and 169,292.59

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Solution

The fourth proportional to 305,259.06, 421,229.67 and 169,292.59 is: 233,608.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,259.06 : 421,229.67 = 169,292.59 : x
  2. Step 2: Convert to fraction form
    305,259.06/421,229.67 = 169,292.59/x
  3. Step 3: Cross multiply
    305,259.06x = 421,229.67 × 169,292.59
  4. Step 4: Simplify right side
    305,259.06x = 71,311,061,819.15
  5. Step 5: Solve for x
    x = 71,311,061,819.15/305,259.06
  6. Step 6: Final answer
    x = 233,608.34

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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.