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Finding the Fourth Proportional to 566.32, 847.92 and 392.80

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Solution

The fourth proportional to 566.32, 847.92 and 392.80 is: 588.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    566.32 : 847.92 = 392.80 : x
  2. Step 2: Convert to fraction form
    566.32/847.92 = 392.80/x
  3. Step 3: Cross multiply
    566.32x = 847.92 × 392.80
  4. Step 4: Simplify right side
    566.32x = 333,062.98
  5. Step 5: Solve for x
    x = 333,062.98/566.32
  6. Step 6: Final answer
    x = 588.12

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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.