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Finding the Fourth Proportional to 372.48, 514.30 and 248.35

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Solution

The fourth proportional to 372.48, 514.30 and 248.35 is: 342.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.48 : 514.30 = 248.35 : x
  2. Step 2: Convert to fraction form
    372.48/514.30 = 248.35/x
  3. Step 3: Cross multiply
    372.48x = 514.30 × 248.35
  4. Step 4: Simplify right side
    372.48x = 127,724.50
  5. Step 5: Solve for x
    x = 127,724.50/372.48
  6. Step 6: Final answer
    x = 342.90

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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.