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Finding the Fourth Proportional to 544.81, 750.81 and 397.18

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Solution

The fourth proportional to 544.81, 750.81 and 397.18 is: 547.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    544.81 : 750.81 = 397.18 : x
  2. Step 2: Convert to fraction form
    544.81/750.81 = 397.18/x
  3. Step 3: Cross multiply
    544.81x = 750.81 × 397.18
  4. Step 4: Simplify right side
    544.81x = 298,206.72
  5. Step 5: Solve for x
    x = 298,206.72/544.81
  6. Step 6: Final answer
    x = 547.36

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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.