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Finding the Fourth Proportional to 366,920.40, 550,321.50 and 100,619.08

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Solution

The fourth proportional to 366,920.40, 550,321.50 and 100,619.08 is: 150,912.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,920.40 : 550,321.50 = 100,619.08 : x
  2. Step 2: Convert to fraction form
    366,920.40/550,321.50 = 100,619.08/x
  3. Step 3: Cross multiply
    366,920.40x = 550,321.50 × 100,619.08
  4. Step 4: Simplify right side
    366,920.40x = 55,372,843,034.22
  5. Step 5: Solve for x
    x = 55,372,843,034.22/366,920.40
  6. Step 6: Final answer
    x = 150,912.41

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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.