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Finding the Fourth Proportional to 300.02, 450.23 and 191.88

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Solution

The fourth proportional to 300.02, 450.23 and 191.88 is: 287.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    300.02 : 450.23 = 191.88 : x
  2. Step 2: Convert to fraction form
    300.02/450.23 = 191.88/x
  3. Step 3: Cross multiply
    300.02x = 450.23 × 191.88
  4. Step 4: Simplify right side
    300.02x = 86,389.17
  5. Step 5: Solve for x
    x = 86,389.17/300.02
  6. Step 6: Final answer
    x = 287.95

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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.