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Finding the Fourth Proportional to 544.31, 816.46 and 133.45

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Solution

The fourth proportional to 544.31, 816.46 and 133.45 is: 200.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    544.31 : 816.46 = 133.45 : x
  2. Step 2: Convert to fraction form
    544.31/816.46 = 133.45/x
  3. Step 3: Cross multiply
    544.31x = 816.46 × 133.45
  4. Step 4: Simplify right side
    544.31x = 108,952.50
  5. Step 5: Solve for x
    x = 108,952.50/544.31
  6. Step 6: Final answer
    x = 200.17

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Double scale
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Similar ratio
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1.5x scale

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.