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Finding the Fourth Proportional to 240,380.36, 360,629.56 and 82,611.08

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Solution

The fourth proportional to 240,380.36, 360,629.56 and 82,611.08 is: 123,936.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,380.36 : 360,629.56 = 82,611.08 : x
  2. Step 2: Convert to fraction form
    240,380.36/360,629.56 = 82,611.08/x
  3. Step 3: Cross multiply
    240,380.36x = 360,629.56 × 82,611.08
  4. Step 4: Simplify right side
    240,380.36x = 29,791,997,431.52
  5. Step 5: Solve for x
    x = 29,791,997,431.52/240,380.36
  6. Step 6: Final answer
    x = 123,936.90

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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.