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Finding the Fourth Proportional to 195.02, 291.84 and 143.54

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Solution

The fourth proportional to 195.02, 291.84 and 143.54 is: 214.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    195.02 : 291.84 = 143.54 : x
  2. Step 2: Convert to fraction form
    195.02/291.84 = 143.54/x
  3. Step 3: Cross multiply
    195.02x = 291.84 × 143.54
  4. Step 4: Simplify right side
    195.02x = 41,890.71
  5. Step 5: Solve for x
    x = 41,890.71/195.02
  6. Step 6: Final answer
    x = 214.80

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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.