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Finding the Fourth Proportional to 249.07, 372.99 and 191.05

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Solution

The fourth proportional to 249.07, 372.99 and 191.05 is: 286.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    249.07 : 372.99 = 191.05 : x
  2. Step 2: Convert to fraction form
    249.07/372.99 = 191.05/x
  3. Step 3: Cross multiply
    249.07x = 372.99 × 191.05
  4. Step 4: Simplify right side
    249.07x = 71,259.74
  5. Step 5: Solve for x
    x = 71,259.74/249.07
  6. Step 6: Final answer
    x = 286.10

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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.