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Finding the Fourth Proportional to 378.52, 568.46 and 348.03

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Solution

The fourth proportional to 378.52, 568.46 and 348.03 is: 522.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    378.52 : 568.46 = 348.03 : x
  2. Step 2: Convert to fraction form
    378.52/568.46 = 348.03/x
  3. Step 3: Cross multiply
    378.52x = 568.46 × 348.03
  4. Step 4: Simplify right side
    378.52x = 197,842.00
  5. Step 5: Solve for x
    x = 197,842.00/378.52
  6. Step 6: Final answer
    x = 522.68

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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.