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Finding the Fourth Proportional to 270.48, 372.41 and 245.85

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Solution

The fourth proportional to 270.48, 372.41 and 245.85 is: 338.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    270.48 : 372.41 = 245.85 : x
  2. Step 2: Convert to fraction form
    270.48/372.41 = 245.85/x
  3. Step 3: Cross multiply
    270.48x = 372.41 × 245.85
  4. Step 4: Simplify right side
    270.48x = 91,557.00
  5. Step 5: Solve for x
    x = 91,557.00/270.48
  6. Step 6: Final answer
    x = 338.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.