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Finding the Fourth Proportional to 248.28, 373.96 and 210.60

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Solution

The fourth proportional to 248.28, 373.96 and 210.60 is: 317.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    248.28 : 373.96 = 210.60 : x
  2. Step 2: Convert to fraction form
    248.28/373.96 = 210.60/x
  3. Step 3: Cross multiply
    248.28x = 373.96 × 210.60
  4. Step 4: Simplify right side
    248.28x = 78,755.98
  5. Step 5: Solve for x
    x = 78,755.98/248.28
  6. Step 6: Final answer
    x = 317.21

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.