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Finding the Fourth Proportional to 676.61, 933.72 and 366.11

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Solution

The fourth proportional to 676.61, 933.72 and 366.11 is: 505.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    676.61 : 933.72 = 366.11 : x
  2. Step 2: Convert to fraction form
    676.61/933.72 = 366.11/x
  3. Step 3: Cross multiply
    676.61x = 933.72 × 366.11
  4. Step 4: Simplify right side
    676.61x = 341,837.73
  5. Step 5: Solve for x
    x = 341,837.73/676.61
  6. Step 6: Final answer
    x = 505.22

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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.