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Finding the Fourth Proportional to 544.02, 817.02 and 339

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Solution

The fourth proportional to 544.02, 817.02 and 339 is: 509.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    544.02 : 817.02 = 339 : x
  2. Step 2: Convert to fraction form
    544.02/817.02 = 339/x
  3. Step 3: Cross multiply
    544.02x = 817.02 × 339
  4. Step 4: Simplify right side
    544.02x = 276,969.78
  5. Step 5: Solve for x
    x = 276,969.78/544.02
  6. Step 6: Final answer
    x = 509.12

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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.