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Finding the Fourth Proportional to 676.41, 933.48 and 377.67

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Solution

The fourth proportional to 676.41, 933.48 and 377.67 is: 521.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    676.41 : 933.48 = 377.67 : x
  2. Step 2: Convert to fraction form
    676.41/933.48 = 377.67/x
  3. Step 3: Cross multiply
    676.41x = 933.48 × 377.67
  4. Step 4: Simplify right side
    676.41x = 352,550.89
  5. Step 5: Solve for x
    x = 352,550.89/676.41
  6. Step 6: Final answer
    x = 521.21

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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.