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Finding the Fourth Proportional to 351.35, 526.73 and 248.31

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Solution

The fourth proportional to 351.35, 526.73 and 248.31 is: 372.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.35 : 526.73 = 248.31 : x
  2. Step 2: Convert to fraction form
    351.35/526.73 = 248.31/x
  3. Step 3: Cross multiply
    351.35x = 526.73 × 248.31
  4. Step 4: Simplify right side
    351.35x = 130,791.08
  5. Step 5: Solve for x
    x = 130,791.08/351.35
  6. Step 6: Final answer
    x = 372.25

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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.