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Finding the Fourth Proportional to 248.34, 372.99 and 190.74

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Solution

The fourth proportional to 248.34, 372.99 and 190.74 is: 286.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    248.34 : 372.99 = 190.74 : x
  2. Step 2: Convert to fraction form
    248.34/372.99 = 190.74/x
  3. Step 3: Cross multiply
    248.34x = 372.99 × 190.74
  4. Step 4: Simplify right side
    248.34x = 71,144.11
  5. Step 5: Solve for x
    x = 71,144.11/248.34
  6. Step 6: Final answer
    x = 286.48

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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.