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Finding the Fourth Proportional to 220,106.40, 330,013.80 and 79,846.80

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Solution

The fourth proportional to 220,106.40, 330,013.80 and 79,846.80 is: 119,717.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,106.40 : 330,013.80 = 79,846.80 : x
  2. Step 2: Convert to fraction form
    220,106.40/330,013.80 = 79,846.80/x
  3. Step 3: Cross multiply
    220,106.40x = 330,013.80 × 79,846.80
  4. Step 4: Simplify right side
    220,106.40x = 26,350,545,885.84
  5. Step 5: Solve for x
    x = 26,350,545,885.84/220,106.40
  6. Step 6: Final answer
    x = 119,717.31

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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.