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Finding the Fourth Proportional to 367,767.80, 551,651.70 and 143,138.60

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Solution

The fourth proportional to 367,767.80, 551,651.70 and 143,138.60 is: 214,707.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,767.80 : 551,651.70 = 143,138.60 : x
  2. Step 2: Convert to fraction form
    367,767.80/551,651.70 = 143,138.60/x
  3. Step 3: Cross multiply
    367,767.80x = 551,651.70 × 143,138.60
  4. Step 4: Simplify right side
    367,767.80x = 78,962,652,025.62
  5. Step 5: Solve for x
    x = 78,962,652,025.62/367,767.80
  6. Step 6: Final answer
    x = 214,707.90

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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.