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Finding the Fourth Proportional to 566.60, 849.30 and 219.80

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Solution

The fourth proportional to 566.60, 849.30 and 219.80 is: 329.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    566.60 : 849.30 = 219.80 : x
  2. Step 2: Convert to fraction form
    566.60/849.30 = 219.80/x
  3. Step 3: Cross multiply
    566.60x = 849.30 × 219.80
  4. Step 4: Simplify right side
    566.60x = 186,676.14
  5. Step 5: Solve for x
    x = 186,676.14/566.60
  6. Step 6: Final answer
    x = 329.47

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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.