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Finding the Fourth Proportional to 548.03, 754.99 and 381.94

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Solution

The fourth proportional to 548.03, 754.99 and 381.94 is: 526.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    548.03 : 754.99 = 381.94 : x
  2. Step 2: Convert to fraction form
    548.03/754.99 = 381.94/x
  3. Step 3: Cross multiply
    548.03x = 754.99 × 381.94
  4. Step 4: Simplify right side
    548.03x = 288,355.20
  5. Step 5: Solve for x
    x = 288,355.20/548.03
  6. Step 6: Final answer
    x = 526.17

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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.