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Finding the Fourth Proportional to 248.82, 373.06 and 126.91

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Solution

The fourth proportional to 248.82, 373.06 and 126.91 is: 190.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    248.82 : 373.06 = 126.91 : x
  2. Step 2: Convert to fraction form
    248.82/373.06 = 126.91/x
  3. Step 3: Cross multiply
    248.82x = 373.06 × 126.91
  4. Step 4: Simplify right side
    248.82x = 47,345.04
  5. Step 5: Solve for x
    x = 47,345.04/248.82
  6. Step 6: Final answer
    x = 190.28

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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.