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Finding the Fourth Proportional to 544.85, 751.88 and 308.81

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Solution

The fourth proportional to 544.85, 751.88 and 308.81 is: 426.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    544.85 : 751.88 = 308.81 : x
  2. Step 2: Convert to fraction form
    544.85/751.88 = 308.81/x
  3. Step 3: Cross multiply
    544.85x = 751.88 × 308.81
  4. Step 4: Simplify right side
    544.85x = 232,182.76
  5. Step 5: Solve for x
    x = 232,182.76/544.85
  6. Step 6: Final answer
    x = 426.14

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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.