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Finding the Fourth Proportional to 548.84, 824.07 and 317.96

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Solution

The fourth proportional to 548.84, 824.07 and 317.96 is: 477.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    548.84 : 824.07 = 317.96 : x
  2. Step 2: Convert to fraction form
    548.84/824.07 = 317.96/x
  3. Step 3: Cross multiply
    548.84x = 824.07 × 317.96
  4. Step 4: Simplify right side
    548.84x = 262,021.30
  5. Step 5: Solve for x
    x = 262,021.30/548.84
  6. Step 6: Final answer
    x = 477.41

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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.