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Finding the Fourth Proportional to 366,968.70, 550,453.05 and 100,728.80

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Solution

The fourth proportional to 366,968.70, 550,453.05 and 100,728.80 is: 151,093.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,968.70 : 550,453.05 = 100,728.80 : x
  2. Step 2: Convert to fraction form
    366,968.70/550,453.05 = 100,728.80/x
  3. Step 3: Cross multiply
    366,968.70x = 550,453.05 × 100,728.80
  4. Step 4: Simplify right side
    366,968.70x = 55,446,475,182.84
  5. Step 5: Solve for x
    x = 55,446,475,182.84/366,968.70
  6. Step 6: Final answer
    x = 151,093.20

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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.