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Finding the Fourth Proportional to 378.24, 567.35 and 104.33

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Solution

The fourth proportional to 378.24, 567.35 and 104.33 is: 156.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    378.24 : 567.35 = 104.33 : x
  2. Step 2: Convert to fraction form
    378.24/567.35 = 104.33/x
  3. Step 3: Cross multiply
    378.24x = 567.35 × 104.33
  4. Step 4: Simplify right side
    378.24x = 59,188.79
  5. Step 5: Solve for x
    x = 59,188.79/378.24
  6. Step 6: Final answer
    x = 156.49

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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.