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Finding the Fourth Proportional to 822.50, 1,233.84 and 335.48

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Solution

The fourth proportional to 822.50, 1,233.84 and 335.48 is: 503.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    822.50 : 1,233.84 = 335.48 : x
  2. Step 2: Convert to fraction form
    822.50/1,233.84 = 335.48/x
  3. Step 3: Cross multiply
    822.50x = 1,233.84 × 335.48
  4. Step 4: Simplify right side
    822.50x = 413,932.99
  5. Step 5: Solve for x
    x = 413,932.99/822.50
  6. Step 6: Final answer
    x = 503.27

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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.