Home / 220,238.80-330,382.19-70,443.88

Finding the Fourth Proportional to 220,238.80, 330,382.19 and 70,443.88

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Solution

The fourth proportional to 220,238.80, 330,382.19 and 70,443.88 is: 105,673.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,238.80 : 330,382.19 = 70,443.88 : x
  2. Step 2: Convert to fraction form
    220,238.80/330,382.19 = 70,443.88/x
  3. Step 3: Cross multiply
    220,238.80x = 330,382.19 × 70,443.88
  4. Step 4: Simplify right side
    220,238.80x = 23,273,402,696.65
  5. Step 5: Solve for x
    x = 23,273,402,696.65/220,238.80
  6. Step 6: Final answer
    x = 105,673.49

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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.