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Finding the Fourth Proportional to 295.81, 443.72 and 133.30

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Solution

The fourth proportional to 295.81, 443.72 and 133.30 is: 199.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    295.81 : 443.72 = 133.30 : x
  2. Step 2: Convert to fraction form
    295.81/443.72 = 133.30/x
  3. Step 3: Cross multiply
    295.81x = 443.72 × 133.30
  4. Step 4: Simplify right side
    295.81x = 59,146.10
  5. Step 5: Solve for x
    x = 59,146.10/295.81
  6. Step 6: Final answer
    x = 199.95

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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.