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Finding the Fourth Proportional to 544.35, 816.80 and 401.25

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Solution

The fourth proportional to 544.35, 816.80 and 401.25 is: 602.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    544.35 : 816.80 = 401.25 : x
  2. Step 2: Convert to fraction form
    544.35/816.80 = 401.25/x
  3. Step 3: Cross multiply
    544.35x = 816.80 × 401.25
  4. Step 4: Simplify right side
    544.35x = 327,741
  5. Step 5: Solve for x
    x = 327,741/544.35
  6. Step 6: Final answer
    x = 602.08

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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.