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Finding the Fourth Proportional to 464.48, 696.28 and 248.08

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Solution

The fourth proportional to 464.48, 696.28 and 248.08 is: 371.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    464.48 : 696.28 = 248.08 : x
  2. Step 2: Convert to fraction form
    464.48/696.28 = 248.08/x
  3. Step 3: Cross multiply
    464.48x = 696.28 × 248.08
  4. Step 4: Simplify right side
    464.48x = 172,733.14
  5. Step 5: Solve for x
    x = 172,733.14/464.48
  6. Step 6: Final answer
    x = 371.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.