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Finding the Fourth Proportional to 934.89, 1,403.03 and 350.43

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Solution

The fourth proportional to 934.89, 1,403.03 and 350.43 is: 525.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    934.89 : 1,403.03 = 350.43 : x
  2. Step 2: Convert to fraction form
    934.89/1,403.03 = 350.43/x
  3. Step 3: Cross multiply
    934.89x = 1,403.03 × 350.43
  4. Step 4: Simplify right side
    934.89x = 491,663.80
  5. Step 5: Solve for x
    x = 491,663.80/934.89
  6. Step 6: Final answer
    x = 525.91

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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.