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Finding the Fourth Proportional to 833.09, 1,249.91 and 371.19

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Solution

The fourth proportional to 833.09, 1,249.91 and 371.19 is: 556.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    833.09 : 1,249.91 = 371.19 : x
  2. Step 2: Convert to fraction form
    833.09/1,249.91 = 371.19/x
  3. Step 3: Cross multiply
    833.09x = 1,249.91 × 371.19
  4. Step 4: Simplify right side
    833.09x = 463,952.24
  5. Step 5: Solve for x
    x = 463,952.24/833.09
  6. Step 6: Final answer
    x = 556.91

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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.