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Finding the Fourth Proportional to 195.70, 291.85 and 192.10

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Solution

The fourth proportional to 195.70, 291.85 and 192.10 is: 286.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    195.70 : 291.85 = 192.10 : x
  2. Step 2: Convert to fraction form
    195.70/291.85 = 192.10/x
  3. Step 3: Cross multiply
    195.70x = 291.85 × 192.10
  4. Step 4: Simplify right side
    195.70x = 56,063.42
  5. Step 5: Solve for x
    x = 56,063.42/195.70
  6. Step 6: Final answer
    x = 286.48

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.