Home / 259,236.72-388,909.32-109,477.44

Finding the Fourth Proportional to 259,236.72, 388,909.32 and 109,477.44

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Solution

The fourth proportional to 259,236.72, 388,909.32 and 109,477.44 is: 164,239.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,236.72 : 388,909.32 = 109,477.44 : x
  2. Step 2: Convert to fraction form
    259,236.72/388,909.32 = 109,477.44/x
  3. Step 3: Cross multiply
    259,236.72x = 388,909.32 × 109,477.44
  4. Step 4: Simplify right side
    259,236.72x = 42,576,796,745.74
  5. Step 5: Solve for x
    x = 42,576,796,745.74/259,236.72
  6. Step 6: Final answer
    x = 164,239.07

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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.