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Finding the Fourth Proportional to 544.51, 816.71 and 154.48

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Solution

The fourth proportional to 544.51, 816.71 and 154.48 is: 231.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    544.51 : 816.71 = 154.48 : x
  2. Step 2: Convert to fraction form
    544.51/816.71 = 154.48/x
  3. Step 3: Cross multiply
    544.51x = 816.71 × 154.48
  4. Step 4: Simplify right side
    544.51x = 126,165.36
  5. Step 5: Solve for x
    x = 126,165.36/544.51
  6. Step 6: Final answer
    x = 231.70

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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.