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Finding the Fourth Proportional to 366,912.35, 550,423.20 and 130,235.21

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Solution

The fourth proportional to 366,912.35, 550,423.20 and 130,235.21 is: 195,372.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,912.35 : 550,423.20 = 130,235.21 : x
  2. Step 2: Convert to fraction form
    366,912.35/550,423.20 = 130,235.21/x
  3. Step 3: Cross multiply
    366,912.35x = 550,423.20 × 130,235.21
  4. Step 4: Simplify right side
    366,912.35x = 71,684,481,040.87
  5. Step 5: Solve for x
    x = 71,684,481,040.87/366,912.35
  6. Step 6: Final answer
    x = 195,372.22

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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.