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Finding the Fourth Proportional to 544.15, 750.95 and 308.08

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Solution

The fourth proportional to 544.15, 750.95 and 308.08 is: 425.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    544.15 : 750.95 = 308.08 : x
  2. Step 2: Convert to fraction form
    544.15/750.95 = 308.08/x
  3. Step 3: Cross multiply
    544.15x = 750.95 × 308.08
  4. Step 4: Simplify right side
    544.15x = 231,352.68
  5. Step 5: Solve for x
    x = 231,352.68/544.15
  6. Step 6: Final answer
    x = 425.16

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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.