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Finding the Fourth Proportional to 366,680.37, 550,021 and 100,443.18

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Solution

The fourth proportional to 366,680.37, 550,021 and 100,443.18 is: 150,664.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,680.37 : 550,021 = 100,443.18 : x
  2. Step 2: Convert to fraction form
    366,680.37/550,021 = 100,443.18/x
  3. Step 3: Cross multiply
    366,680.37x = 550,021 × 100,443.18
  4. Step 4: Simplify right side
    366,680.37x = 55,245,858,306.78
  5. Step 5: Solve for x
    x = 55,245,858,306.78/366,680.37
  6. Step 6: Final answer
    x = 150,664.89

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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.