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Finding the Fourth Proportional to 544.18, 751.32 and 397.18

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Solution

The fourth proportional to 544.18, 751.32 and 397.18 is: 548.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    544.18 : 751.32 = 397.18 : x
  2. Step 2: Convert to fraction form
    544.18/751.32 = 397.18/x
  3. Step 3: Cross multiply
    544.18x = 751.32 × 397.18
  4. Step 4: Simplify right side
    544.18x = 298,409.28
  5. Step 5: Solve for x
    x = 298,409.28/544.18
  6. Step 6: Final answer
    x = 548.37

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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.