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Finding the Fourth Proportional to 286,252.22, 395,009.79 and 158,927.78

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Solution

The fourth proportional to 286,252.22, 395,009.79 and 158,927.78 is: 219,310.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,252.22 : 395,009.79 = 158,927.78 : x
  2. Step 2: Convert to fraction form
    286,252.22/395,009.79 = 158,927.78/x
  3. Step 3: Cross multiply
    286,252.22x = 395,009.79 × 158,927.78
  4. Step 4: Simplify right side
    286,252.22x = 62,778,029,002.97
  5. Step 5: Solve for x
    x = 62,778,029,002.97/286,252.22
  6. Step 6: Final answer
    x = 219,310.19

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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.