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Finding the Fourth Proportional to 522.13, 782.84 and 197.22

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Solution

The fourth proportional to 522.13, 782.84 and 197.22 is: 295.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    522.13 : 782.84 = 197.22 : x
  2. Step 2: Convert to fraction form
    522.13/782.84 = 197.22/x
  3. Step 3: Cross multiply
    522.13x = 782.84 × 197.22
  4. Step 4: Simplify right side
    522.13x = 154,391.70
  5. Step 5: Solve for x
    x = 154,391.70/522.13
  6. Step 6: Final answer
    x = 295.70

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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.