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Finding the Fourth Proportional to 195.52, 291.40 and 190.40

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Solution

The fourth proportional to 195.52, 291.40 and 190.40 is: 283.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    195.52 : 291.40 = 190.40 : x
  2. Step 2: Convert to fraction form
    195.52/291.40 = 190.40/x
  3. Step 3: Cross multiply
    195.52x = 291.40 × 190.40
  4. Step 4: Simplify right side
    195.52x = 55,482.56
  5. Step 5: Solve for x
    x = 55,482.56/195.52
  6. Step 6: Final answer
    x = 283.77

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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.