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Finding the Fourth Proportional to 299.51, 447.10 and 263.06

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Solution

The fourth proportional to 299.51, 447.10 and 263.06 is: 392.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    299.51 : 447.10 = 263.06 : x
  2. Step 2: Convert to fraction form
    299.51/447.10 = 263.06/x
  3. Step 3: Cross multiply
    299.51x = 447.10 × 263.06
  4. Step 4: Simplify right side
    299.51x = 117,614.59
  5. Step 5: Solve for x
    x = 117,614.59/299.51
  6. Step 6: Final answer
    x = 392.69

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.