Home / 220,257.72-330,373.20-78,110.04

Finding the Fourth Proportional to 220,257.72, 330,373.20 and 78,110.04

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Solution

The fourth proportional to 220,257.72, 330,373.20 and 78,110.04 is: 117,160.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,257.72 : 330,373.20 = 78,110.04 : x
  2. Step 2: Convert to fraction form
    220,257.72/330,373.20 = 78,110.04/x
  3. Step 3: Cross multiply
    220,257.72x = 330,373.20 × 78,110.04
  4. Step 4: Simplify right side
    220,257.72x = 25,805,463,866.93
  5. Step 5: Solve for x
    x = 25,805,463,866.93/220,257.72
  6. Step 6: Final answer
    x = 117,160.32

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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.