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Finding the Fourth Proportional to 251,578.58, 347,179.97 and 136,858.28

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Solution

The fourth proportional to 251,578.58, 347,179.97 and 136,858.28 is: 188,865.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,578.58 : 347,179.97 = 136,858.28 : x
  2. Step 2: Convert to fraction form
    251,578.58/347,179.97 = 136,858.28/x
  3. Step 3: Cross multiply
    251,578.58x = 347,179.97 × 136,858.28
  4. Step 4: Simplify right side
    251,578.58x = 47,514,451,124.46
  5. Step 5: Solve for x
    x = 47,514,451,124.46/251,578.58
  6. Step 6: Final answer
    x = 188,865.25

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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.