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Finding the Fourth Proportional to 286,908, 395,933.04 and 167,676

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Solution

The fourth proportional to 286,908, 395,933.04 and 167,676 is: 231,392.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,908 : 395,933.04 = 167,676 : x
  2. Step 2: Convert to fraction form
    286,908/395,933.04 = 167,676/x
  3. Step 3: Cross multiply
    286,908x = 395,933.04 × 167,676
  4. Step 4: Simplify right side
    286,908x = 66,388,468,415.04
  5. Step 5: Solve for x
    x = 66,388,468,415.04/286,908
  6. Step 6: Final answer
    x = 231,392.88

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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.