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Finding the Fourth Proportional to 220,112.80, 330,169.20 and 102,014.80

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Solution

The fourth proportional to 220,112.80, 330,169.20 and 102,014.80 is: 153,022.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,112.80 : 330,169.20 = 102,014.80 : x
  2. Step 2: Convert to fraction form
    220,112.80/330,169.20 = 102,014.80/x
  3. Step 3: Cross multiply
    220,112.80x = 330,169.20 × 102,014.80
  4. Step 4: Simplify right side
    220,112.80x = 33,682,144,904.16
  5. Step 5: Solve for x
    x = 33,682,144,904.16/220,112.80
  6. Step 6: Final answer
    x = 153,022.20

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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.