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Finding the Fourth Proportional to 286,383.96, 395,198.88 and 159,067.68

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Solution

The fourth proportional to 286,383.96, 395,198.88 and 159,067.68 is: 219,507.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,383.96 : 395,198.88 = 159,067.68 : x
  2. Step 2: Convert to fraction form
    286,383.96/395,198.88 = 159,067.68/x
  3. Step 3: Cross multiply
    286,383.96x = 395,198.88 × 159,067.68
  4. Step 4: Simplify right side
    286,383.96x = 62,863,368,980.20
  5. Step 5: Solve for x
    x = 62,863,368,980.20/286,383.96
  6. Step 6: Final answer
    x = 219,507.30

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1.5x scale

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.