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Finding the Fourth Proportional to 378.16, 567.06 and 248.15

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Solution

The fourth proportional to 378.16, 567.06 and 248.15 is: 372.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    378.16 : 567.06 = 248.15 : x
  2. Step 2: Convert to fraction form
    378.16/567.06 = 248.15/x
  3. Step 3: Cross multiply
    378.16x = 567.06 × 248.15
  4. Step 4: Simplify right side
    378.16x = 140,717.36
  5. Step 5: Solve for x
    x = 140,717.36/378.16
  6. Step 6: Final answer
    x = 372.11

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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.