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Finding the Fourth Proportional to 1,067.00, 1,600.49 and 287.08

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Solution

The fourth proportional to 1,067.00, 1,600.49 and 287.08 is: 430.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,067.00 : 1,600.49 = 287.08 : x
  2. Step 2: Convert to fraction form
    1,067.00/1,600.49 = 287.08/x
  3. Step 3: Cross multiply
    1,067.00x = 1,600.49 × 287.08
  4. Step 4: Simplify right side
    1,067.00x = 459,465.39
  5. Step 5: Solve for x
    x = 459,465.39/1,067.00
  6. Step 6: Final answer
    x = 430.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.