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Finding the Fourth Proportional to 248.80, 370.68 and 237.20

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Solution

The fourth proportional to 248.80, 370.68 and 237.20 is: 353.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    248.80 : 370.68 = 237.20 : x
  2. Step 2: Convert to fraction form
    248.80/370.68 = 237.20/x
  3. Step 3: Cross multiply
    248.80x = 370.68 × 237.20
  4. Step 4: Simplify right side
    248.80x = 87,925.30
  5. Step 5: Solve for x
    x = 87,925.30/248.80
  6. Step 6: Final answer
    x = 353.40

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.