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Finding the Fourth Proportional to 566.92, 850.65 and 485.65

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Solution

The fourth proportional to 566.92, 850.65 and 485.65 is: 728.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    566.92 : 850.65 = 485.65 : x
  2. Step 2: Convert to fraction form
    566.92/850.65 = 485.65/x
  3. Step 3: Cross multiply
    566.92x = 850.65 × 485.65
  4. Step 4: Simplify right side
    566.92x = 413,118.17
  5. Step 5: Solve for x
    x = 413,118.17/566.92
  6. Step 6: Final answer
    x = 728.71

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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.