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Finding the Fourth Proportional to 682.06, 1,022.95 and 195.16

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Solution

The fourth proportional to 682.06, 1,022.95 and 195.16 is: 292.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    682.06 : 1,022.95 = 195.16 : x
  2. Step 2: Convert to fraction form
    682.06/1,022.95 = 195.16/x
  3. Step 3: Cross multiply
    682.06x = 1,022.95 × 195.16
  4. Step 4: Simplify right side
    682.06x = 199,638.92
  5. Step 5: Solve for x
    x = 199,638.92/682.06
  6. Step 6: Final answer
    x = 292.70

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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.