Home / 305,822.36-422,020.44-169,865.06

Finding the Fourth Proportional to 305,822.36, 422,020.44 and 169,865.06

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Solution

The fourth proportional to 305,822.36, 422,020.44 and 169,865.06 is: 234,405.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,822.36 : 422,020.44 = 169,865.06 : x
  2. Step 2: Convert to fraction form
    305,822.36/422,020.44 = 169,865.06/x
  3. Step 3: Cross multiply
    305,822.36x = 422,020.44 × 169,865.06
  4. Step 4: Simplify right side
    305,822.36x = 71,686,527,361.83
  5. Step 5: Solve for x
    x = 71,686,527,361.83/305,822.36
  6. Step 6: Final answer
    x = 234,405.78

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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.