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Finding the Fourth Proportional to 300.84, 451.41 and 125.13

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Solution

The fourth proportional to 300.84, 451.41 and 125.13 is: 187.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    300.84 : 451.41 = 125.13 : x
  2. Step 2: Convert to fraction form
    300.84/451.41 = 125.13/x
  3. Step 3: Cross multiply
    300.84x = 451.41 × 125.13
  4. Step 4: Simplify right side
    300.84x = 56,484.93
  5. Step 5: Solve for x
    x = 56,484.93/300.84
  6. Step 6: Final answer
    x = 187.76

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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.