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Finding the Fourth Proportional to 837.45, 1,255.95 and 350.22

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Solution

The fourth proportional to 837.45, 1,255.95 and 350.22 is: 525.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    837.45 : 1,255.95 = 350.22 : x
  2. Step 2: Convert to fraction form
    837.45/1,255.95 = 350.22/x
  3. Step 3: Cross multiply
    837.45x = 1,255.95 × 350.22
  4. Step 4: Simplify right side
    837.45x = 439,858.81
  5. Step 5: Solve for x
    x = 439,858.81/837.45
  6. Step 6: Final answer
    x = 525.24

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1.5x scale

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.