Home / 220,062.46-303,639.48-129,385.33

Finding the Fourth Proportional to 220,062.46, 303,639.48 and 129,385.33

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Solution

The fourth proportional to 220,062.46, 303,639.48 and 129,385.33 is: 178,524.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,062.46 : 303,639.48 = 129,385.33 : x
  2. Step 2: Convert to fraction form
    220,062.46/303,639.48 = 129,385.33/x
  3. Step 3: Cross multiply
    220,062.46x = 303,639.48 × 129,385.33
  4. Step 4: Simplify right side
    220,062.46x = 39,286,494,320.83
  5. Step 5: Solve for x
    x = 39,286,494,320.83/220,062.46
  6. Step 6: Final answer
    x = 178,524.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.