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Finding the Fourth Proportional to 544.88, 817.65 and 339.68

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Solution

The fourth proportional to 544.88, 817.65 and 339.68 is: 509.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    544.88 : 817.65 = 339.68 : x
  2. Step 2: Convert to fraction form
    544.88/817.65 = 339.68/x
  3. Step 3: Cross multiply
    544.88x = 817.65 × 339.68
  4. Step 4: Simplify right side
    544.88x = 277,735.26
  5. Step 5: Solve for x
    x = 277,735.26/544.88
  6. Step 6: Final answer
    x = 509.72

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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.