Home / 305,972.22-422,240.31-170,028.30

Finding the Fourth Proportional to 305,972.22, 422,240.31 and 170,028.30

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Solution

The fourth proportional to 305,972.22, 422,240.31 and 170,028.30 is: 234,638.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,972.22 : 422,240.31 = 170,028.30 : x
  2. Step 2: Convert to fraction form
    305,972.22/422,240.31 = 170,028.30/x
  3. Step 3: Cross multiply
    305,972.22x = 422,240.31 × 170,028.30
  4. Step 4: Simplify right side
    305,972.22x = 71,792,802,100.77
  5. Step 5: Solve for x
    x = 71,792,802,100.77/305,972.22
  6. Step 6: Final answer
    x = 234,638.30

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1.5x scale

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.