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Finding the Fourth Proportional to 248.94, 373.95 and 177.21

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Solution

The fourth proportional to 248.94, 373.95 and 177.21 is: 266.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    248.94 : 373.95 = 177.21 : x
  2. Step 2: Convert to fraction form
    248.94/373.95 = 177.21/x
  3. Step 3: Cross multiply
    248.94x = 373.95 × 177.21
  4. Step 4: Simplify right side
    248.94x = 66,267.68
  5. Step 5: Solve for x
    x = 66,267.68/248.94
  6. Step 6: Final answer
    x = 266.20

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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.