Home / 220,127.20-330,190.80-53,915.20

Finding the Fourth Proportional to 220,127.20, 330,190.80 and 53,915.20

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Solution

The fourth proportional to 220,127.20, 330,190.80 and 53,915.20 is: 80,872.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,127.20 : 330,190.80 = 53,915.20 : x
  2. Step 2: Convert to fraction form
    220,127.20/330,190.80 = 53,915.20/x
  3. Step 3: Cross multiply
    220,127.20x = 330,190.80 × 53,915.20
  4. Step 4: Simplify right side
    220,127.20x = 17,802,303,020.16
  5. Step 5: Solve for x
    x = 17,802,303,020.16/220,127.20
  6. Step 6: Final answer
    x = 80,872.80

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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.