Home / 305,127.43-421,063.46-169,163.35

Finding the Fourth Proportional to 305,127.43, 421,063.46 and 169,163.35

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Solution

The fourth proportional to 305,127.43, 421,063.46 and 169,163.35 is: 233,438.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,127.43 : 421,063.46 = 169,163.35 : x
  2. Step 2: Convert to fraction form
    305,127.43/421,063.46 = 169,163.35/x
  3. Step 3: Cross multiply
    305,127.43x = 421,063.46 × 169,163.35
  4. Step 4: Simplify right side
    305,127.43x = 71,228,504,610.37
  5. Step 5: Solve for x
    x = 71,228,504,610.37/305,127.43
  6. Step 6: Final answer
    x = 233,438.55

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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.