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Finding the Fourth Proportional to 220,130.80, 329,321.40 and 190,873.60

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Solution

The fourth proportional to 220,130.80, 329,321.40 and 190,873.60 is: 285,551.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,130.80 : 329,321.40 = 190,873.60 : x
  2. Step 2: Convert to fraction form
    220,130.80/329,321.40 = 190,873.60/x
  3. Step 3: Cross multiply
    220,130.80x = 329,321.40 × 190,873.60
  4. Step 4: Simplify right side
    220,130.80x = 62,858,761,175.04
  5. Step 5: Solve for x
    x = 62,858,761,175.04/220,130.80
  6. Step 6: Final answer
    x = 285,551.87

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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.