Home / 259,936.32-389,918.34-82,457.46

Finding the Fourth Proportional to 259,936.32, 389,918.34 and 82,457.46

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Solution

The fourth proportional to 259,936.32, 389,918.34 and 82,457.46 is: 123,690.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,936.32 : 389,918.34 = 82,457.46 : x
  2. Step 2: Convert to fraction form
    259,936.32/389,918.34 = 82,457.46/x
  3. Step 3: Cross multiply
    259,936.32x = 389,918.34 × 82,457.46
  4. Step 4: Simplify right side
    259,936.32x = 32,151,675,923.82
  5. Step 5: Solve for x
    x = 32,151,675,923.82/259,936.32
  6. Step 6: Final answer
    x = 123,690.59

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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.