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Finding the Fourth Proportional to 934.89, 1,401.43 and 349.73

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Solution

The fourth proportional to 934.89, 1,401.43 and 349.73 is: 524.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    934.89 : 1,401.43 = 349.73 : x
  2. Step 2: Convert to fraction form
    934.89/1,401.43 = 349.73/x
  3. Step 3: Cross multiply
    934.89x = 1,401.43 × 349.73
  4. Step 4: Simplify right side
    934.89x = 490,122.11
  5. Step 5: Solve for x
    x = 490,122.11/934.89
  6. Step 6: Final answer
    x = 524.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.