Home / 251,388.12-346,910.94-138,208.44

Finding the Fourth Proportional to 251,388.12, 346,910.94 and 138,208.44

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Solution

The fourth proportional to 251,388.12, 346,910.94 and 138,208.44 is: 190,725.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,388.12 : 346,910.94 = 138,208.44 : x
  2. Step 2: Convert to fraction form
    251,388.12/346,910.94 = 138,208.44/x
  3. Step 3: Cross multiply
    251,388.12x = 346,910.94 × 138,208.44
  4. Step 4: Simplify right side
    251,388.12x = 47,946,019,836.33
  5. Step 5: Solve for x
    x = 47,946,019,836.33/251,388.12
  6. Step 6: Final answer
    x = 190,725.08

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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.