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Finding the Fourth Proportional to 276,505.30, 414,372.37 and 208,981.90

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Solution

The fourth proportional to 276,505.30, 414,372.37 and 208,981.90 is: 313,181.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,505.30 : 414,372.37 = 208,981.90 : x
  2. Step 2: Convert to fraction form
    276,505.30/414,372.37 = 208,981.90/x
  3. Step 3: Cross multiply
    276,505.30x = 414,372.37 × 208,981.90
  4. Step 4: Simplify right side
    276,505.30x = 86,596,325,190.10
  5. Step 5: Solve for x
    x = 86,596,325,190.10/276,505.30
  6. Step 6: Final answer
    x = 313,181.43

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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.