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Finding the Fourth Proportional to 291,067.82, 401,613 and 170,185.64

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Solution

The fourth proportional to 291,067.82, 401,613 and 170,185.64 is: 234,820.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,067.82 : 401,613 = 170,185.64 : x
  2. Step 2: Convert to fraction form
    291,067.82/401,613 = 170,185.64/x
  3. Step 3: Cross multiply
    291,067.82x = 401,613 × 170,185.64
  4. Step 4: Simplify right side
    291,067.82x = 68,348,765,437.32
  5. Step 5: Solve for x
    x = 68,348,765,437.32/291,067.82
  6. Step 6: Final answer
    x = 234,820.76

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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.