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Finding the Fourth Proportional to 378.53, 568.35 and 359.96

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Solution

The fourth proportional to 378.53, 568.35 and 359.96 is: 540.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    378.53 : 568.35 = 359.96 : x
  2. Step 2: Convert to fraction form
    378.53/568.35 = 359.96/x
  3. Step 3: Cross multiply
    378.53x = 568.35 × 359.96
  4. Step 4: Simplify right side
    378.53x = 204,580.42
  5. Step 5: Solve for x
    x = 204,580.42/378.53
  6. Step 6: Final answer
    x = 540.47

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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.