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Finding the Fourth Proportional to 335.72, 462.78 and 248.24

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Solution

The fourth proportional to 335.72, 462.78 and 248.24 is: 342.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.72 : 462.78 = 248.24 : x
  2. Step 2: Convert to fraction form
    335.72/462.78 = 248.24/x
  3. Step 3: Cross multiply
    335.72x = 462.78 × 248.24
  4. Step 4: Simplify right side
    335.72x = 114,880.51
  5. Step 5: Solve for x
    x = 114,880.51/335.72
  6. Step 6: Final answer
    x = 342.19

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