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Finding the Fourth Proportional to 181,494.75, 250,448.43 and 100,917.30

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Solution

The fourth proportional to 181,494.75, 250,448.43 and 100,917.30 is: 139,257.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,494.75 : 250,448.43 = 100,917.30 : x
  2. Step 2: Convert to fraction form
    181,494.75/250,448.43 = 100,917.30/x
  3. Step 3: Cross multiply
    181,494.75x = 250,448.43 × 100,917.30
  4. Step 4: Simplify right side
    181,494.75x = 25,274,579,344.84
  5. Step 5: Solve for x
    x = 25,274,579,344.84/181,494.75
  6. Step 6: Final answer
    x = 139,257.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.