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Finding the Fourth Proportional to 220,040.10, 330,060.15 and 53,828.10

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Solution

The fourth proportional to 220,040.10, 330,060.15 and 53,828.10 is: 80,742.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,040.10 : 330,060.15 = 53,828.10 : x
  2. Step 2: Convert to fraction form
    220,040.10/330,060.15 = 53,828.10/x
  3. Step 3: Cross multiply
    220,040.10x = 330,060.15 × 53,828.10
  4. Step 4: Simplify right side
    220,040.10x = 17,766,510,760.22
  5. Step 5: Solve for x
    x = 17,766,510,760.22/220,040.10
  6. Step 6: Final answer
    x = 80,742.15

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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.