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Finding the Fourth Proportional to 544.66, 816.45 and 220.26

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Solution

The fourth proportional to 544.66, 816.45 and 220.26 is: 330.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    544.66 : 816.45 = 220.26 : x
  2. Step 2: Convert to fraction form
    544.66/816.45 = 220.26/x
  3. Step 3: Cross multiply
    544.66x = 816.45 × 220.26
  4. Step 4: Simplify right side
    544.66x = 179,831.28
  5. Step 5: Solve for x
    x = 179,831.28/544.66
  6. Step 6: Final answer
    x = 330.17

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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.