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Finding the Fourth Proportional to 401.67, 602.08 and 195.95

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Solution

The fourth proportional to 401.67, 602.08 and 195.95 is: 293.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    401.67 : 602.08 = 195.95 : x
  2. Step 2: Convert to fraction form
    401.67/602.08 = 195.95/x
  3. Step 3: Cross multiply
    401.67x = 602.08 × 195.95
  4. Step 4: Simplify right side
    401.67x = 117,977.58
  5. Step 5: Solve for x
    x = 117,977.58/401.67
  6. Step 6: Final answer
    x = 293.72

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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.