Home / 220,427.36-330,734.66-120,470.77

Finding the Fourth Proportional to 220,427.36, 330,734.66 and 120,470.77

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Solution

The fourth proportional to 220,427.36, 330,734.66 and 120,470.77 is: 180,757.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,427.36 : 330,734.66 = 120,470.77 : x
  2. Step 2: Convert to fraction form
    220,427.36/330,734.66 = 120,470.77/x
  3. Step 3: Cross multiply
    220,427.36x = 330,734.66 × 120,470.77
  4. Step 4: Simplify right side
    220,427.36x = 39,843,858,966.95
  5. Step 5: Solve for x
    x = 39,843,858,966.95/220,427.36
  6. Step 6: Final answer
    x = 180,757.32

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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.