Home / 220,511.26-330,844.65-80,284.06

Finding the Fourth Proportional to 220,511.26, 330,844.65 and 80,284.06

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Solution

The fourth proportional to 220,511.26, 330,844.65 and 80,284.06 is: 120,454.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,511.26 : 330,844.65 = 80,284.06 : x
  2. Step 2: Convert to fraction form
    220,511.26/330,844.65 = 80,284.06/x
  3. Step 3: Cross multiply
    220,511.26x = 330,844.65 × 80,284.06
  4. Step 4: Simplify right side
    220,511.26x = 26,561,551,731.28
  5. Step 5: Solve for x
    x = 26,561,551,731.28/220,511.26
  6. Step 6: Final answer
    x = 120,454.40

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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.