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Finding the Fourth Proportional to 248.67, 373.14 and 187.65

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Solution

The fourth proportional to 248.67, 373.14 and 187.65 is: 281.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    248.67 : 373.14 = 187.65 : x
  2. Step 2: Convert to fraction form
    248.67/373.14 = 187.65/x
  3. Step 3: Cross multiply
    248.67x = 373.14 × 187.65
  4. Step 4: Simplify right side
    248.67x = 70,019.72
  5. Step 5: Solve for x
    x = 70,019.72/248.67
  6. Step 6: Final answer
    x = 281.58

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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.