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Finding the Fourth Proportional to 286,251.77, 395,039.78 and 158,927.38

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Solution

The fourth proportional to 286,251.77, 395,039.78 and 158,927.38 is: 219,326.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,251.77 : 395,039.78 = 158,927.38 : x
  2. Step 2: Convert to fraction form
    286,251.77/395,039.78 = 158,927.38/x
  3. Step 3: Cross multiply
    286,251.77x = 395,039.78 × 158,927.38
  4. Step 4: Simplify right side
    286,251.77x = 62,782,635,653.30
  5. Step 5: Solve for x
    x = 62,782,635,653.30/286,251.77
  6. Step 6: Final answer
    x = 219,326.63

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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.