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Finding the Fourth Proportional to 410.75, 567.09 and 317.33

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Solution

The fourth proportional to 410.75, 567.09 and 317.33 is: 438.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    410.75 : 567.09 = 317.33 : x
  2. Step 2: Convert to fraction form
    410.75/567.09 = 317.33/x
  3. Step 3: Cross multiply
    410.75x = 567.09 × 317.33
  4. Step 4: Simplify right side
    410.75x = 179,951.83
  5. Step 5: Solve for x
    x = 179,951.83/410.75
  6. Step 6: Final answer
    x = 438.11

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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.