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Finding the Fourth Proportional to 247.08, 372.45 and 225.48

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Solution

The fourth proportional to 247.08, 372.45 and 225.48 is: 339.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    247.08 : 372.45 = 225.48 : x
  2. Step 2: Convert to fraction form
    247.08/372.45 = 225.48/x
  3. Step 3: Cross multiply
    247.08x = 372.45 × 225.48
  4. Step 4: Simplify right side
    247.08x = 83,980.03
  5. Step 5: Solve for x
    x = 83,980.03/247.08
  6. Step 6: Final answer
    x = 339.89

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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.