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Finding the Fourth Proportional to 837.09, 1,255.68 and 350.19

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Solution

The fourth proportional to 837.09, 1,255.68 and 350.19 is: 525.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    837.09 : 1,255.68 = 350.19 : x
  2. Step 2: Convert to fraction form
    837.09/1,255.68 = 350.19/x
  3. Step 3: Cross multiply
    837.09x = 1,255.68 × 350.19
  4. Step 4: Simplify right side
    837.09x = 439,726.58
  5. Step 5: Solve for x
    x = 439,726.58/837.09
  6. Step 6: Final answer
    x = 525.30

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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.