Home / 220,138.80-329,333.40-190,881.60

Finding the Fourth Proportional to 220,138.80, 329,333.40 and 190,881.60

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Solution

The fourth proportional to 220,138.80, 329,333.40 and 190,881.60 is: 285,563.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,138.80 : 329,333.40 = 190,881.60 : x
  2. Step 2: Convert to fraction form
    220,138.80/329,333.40 = 190,881.60/x
  3. Step 3: Cross multiply
    220,138.80x = 329,333.40 × 190,881.60
  4. Step 4: Simplify right side
    220,138.80x = 62,863,686,325.44
  5. Step 5: Solve for x
    x = 62,863,686,325.44/220,138.80
  6. Step 6: Final answer
    x = 285,563.86

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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.