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Finding the Fourth Proportional to 833.95, 1,250.97 and 217.67

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Solution

The fourth proportional to 833.95, 1,250.97 and 217.67 is: 326.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    833.95 : 1,250.97 = 217.67 : x
  2. Step 2: Convert to fraction form
    833.95/1,250.97 = 217.67/x
  3. Step 3: Cross multiply
    833.95x = 1,250.97 × 217.67
  4. Step 4: Simplify right side
    833.95x = 272,297.55
  5. Step 5: Solve for x
    x = 272,297.55/833.95
  6. Step 6: Final answer
    x = 326.52

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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.