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Finding the Fourth Proportional to 300.07, 449.29 and 191.53

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Solution

The fourth proportional to 300.07, 449.29 and 191.53 is: 286.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    300.07 : 449.29 = 191.53 : x
  2. Step 2: Convert to fraction form
    300.07/449.29 = 191.53/x
  3. Step 3: Cross multiply
    300.07x = 449.29 × 191.53
  4. Step 4: Simplify right side
    300.07x = 86,052.51
  5. Step 5: Solve for x
    x = 86,052.51/300.07
  6. Step 6: Final answer
    x = 286.77

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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.