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Finding the Fourth Proportional to 283.33, 391.03 and 172.82

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Solution

The fourth proportional to 283.33, 391.03 and 172.82 is: 238.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    283.33 : 391.03 = 172.82 : x
  2. Step 2: Convert to fraction form
    283.33/391.03 = 172.82/x
  3. Step 3: Cross multiply
    283.33x = 391.03 × 172.82
  4. Step 4: Simplify right side
    283.33x = 67,577.80
  5. Step 5: Solve for x
    x = 67,577.80/283.33
  6. Step 6: Final answer
    x = 238.51

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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.