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Finding the Fourth Proportional to 220,801.74, 331,251.75 and 80,560.32

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Solution

The fourth proportional to 220,801.74, 331,251.75 and 80,560.32 is: 120,858.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,801.74 : 331,251.75 = 80,560.32 : x
  2. Step 2: Convert to fraction form
    220,801.74/331,251.75 = 80,560.32/x
  3. Step 3: Cross multiply
    220,801.74x = 331,251.75 × 80,560.32
  4. Step 4: Simplify right side
    220,801.74x = 26,685,746,980.56
  5. Step 5: Solve for x
    x = 26,685,746,980.56/220,801.74
  6. Step 6: Final answer
    x = 120,858.41

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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.