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Finding the Fourth Proportional to 676.17, 933.03 and 381.42

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Solution

The fourth proportional to 676.17, 933.03 and 381.42 is: 526.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    676.17 : 933.03 = 381.42 : x
  2. Step 2: Convert to fraction form
    676.17/933.03 = 381.42/x
  3. Step 3: Cross multiply
    676.17x = 933.03 × 381.42
  4. Step 4: Simplify right side
    676.17x = 355,876.30
  5. Step 5: Solve for x
    x = 355,876.30/676.17
  6. Step 6: Final answer
    x = 526.31

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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.