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Finding the Fourth Proportional to 833.88, 1,251.12 and 443.85

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Solution

The fourth proportional to 833.88, 1,251.12 and 443.85 is: 665.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    833.88 : 1,251.12 = 443.85 : x
  2. Step 2: Convert to fraction form
    833.88/1,251.12 = 443.85/x
  3. Step 3: Cross multiply
    833.88x = 1,251.12 × 443.85
  4. Step 4: Simplify right side
    833.88x = 555,309.61
  5. Step 5: Solve for x
    x = 555,309.61/833.88
  6. Step 6: Final answer
    x = 665.93

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Double scale
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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.