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Finding the Fourth Proportional to 366,943.35, 550,469.70 and 130,266.21

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Solution

The fourth proportional to 366,943.35, 550,469.70 and 130,266.21 is: 195,418.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,943.35 : 550,469.70 = 130,266.21 : x
  2. Step 2: Convert to fraction form
    366,943.35/550,469.70 = 130,266.21/x
  3. Step 3: Cross multiply
    366,943.35x = 550,469.70 × 130,266.21
  4. Step 4: Simplify right side
    366,943.35x = 71,707,601,538.84
  5. Step 5: Solve for x
    x = 71,707,601,538.84/366,943.35
  6. Step 6: Final answer
    x = 195,418.72

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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.