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Finding the Fourth Proportional to 276,858.10, 415,321.73 and 108,356.64

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Solution

The fourth proportional to 276,858.10, 415,321.73 and 108,356.64 is: 162,548.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,858.10 : 415,321.73 = 108,356.64 : x
  2. Step 2: Convert to fraction form
    276,858.10/415,321.73 = 108,356.64/x
  3. Step 3: Cross multiply
    276,858.10x = 415,321.73 × 108,356.64
  4. Step 4: Simplify right side
    276,858.10x = 45,002,865,488.88
  5. Step 5: Solve for x
    x = 45,002,865,488.88/276,858.10
  6. Step 6: Final answer
    x = 162,548.49

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.