Home / 220,120.80-329,306.40-190,863.60

Finding the Fourth Proportional to 220,120.80, 329,306.40 and 190,863.60

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Solution

The fourth proportional to 220,120.80, 329,306.40 and 190,863.60 is: 285,536.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,120.80 : 329,306.40 = 190,863.60 : x
  2. Step 2: Convert to fraction form
    220,120.80/329,306.40 = 190,863.60/x
  3. Step 3: Cross multiply
    220,120.80x = 329,306.40 × 190,863.60
  4. Step 4: Simplify right side
    220,120.80x = 62,852,605,007.04
  5. Step 5: Solve for x
    x = 62,852,605,007.04/220,120.80
  6. Step 6: Final answer
    x = 285,536.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.