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Finding the Third Proportional to 248.91 and 373.78

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Solution

The third proportional to 248.91 and 373.78 is: 561.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    248.91 : 373.78 = 373.78 : x
  2. Step 2: Convert to fraction form
    248.91/373.78 = 373.78/x
  3. Step 3: Cross multiply
    248.91x = 373.78 × 373.78
  4. Step 4: Simplify right side
    248.91x = 139,712.42
  5. Step 5: Solve for x
    x = 139,712.42/248.91
  6. Step 6: Final answer
    x = 561.31

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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.