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Finding the Fourth Proportional to 568.08, 787.57 and 548.06

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Solution

The fourth proportional to 568.08, 787.57 and 548.06 is: 759.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    568.08 : 787.57 = 548.06 : x
  2. Step 2: Convert to fraction form
    568.08/787.57 = 548.06/x
  3. Step 3: Cross multiply
    568.08x = 787.57 × 548.06
  4. Step 4: Simplify right side
    568.08x = 431,630.31
  5. Step 5: Solve for x
    x = 431,630.31/568.08
  6. Step 6: Final answer
    x = 759.81

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.