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Finding the Fourth Proportional to 568.06, 850.98 and 285.79

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Solution

The fourth proportional to 568.06, 850.98 and 285.79 is: 428.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    568.06 : 850.98 = 285.79 : x
  2. Step 2: Convert to fraction form
    568.06/850.98 = 285.79/x
  3. Step 3: Cross multiply
    568.06x = 850.98 × 285.79
  4. Step 4: Simplify right side
    568.06x = 243,201.57
  5. Step 5: Solve for x
    x = 243,201.57/568.06
  6. Step 6: Final answer
    x = 428.13

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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.