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Finding the Fourth Proportional to 544.40, 752.11 and 540.30

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Solution

The fourth proportional to 544.40, 752.11 and 540.30 is: 746.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    544.40 : 752.11 = 540.30 : x
  2. Step 2: Convert to fraction form
    544.40/752.11 = 540.30/x
  3. Step 3: Cross multiply
    544.40x = 752.11 × 540.30
  4. Step 4: Simplify right side
    544.40x = 406,361.68
  5. Step 5: Solve for x
    x = 406,361.68/544.40
  6. Step 6: Final answer
    x = 746.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.