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Finding the Fourth Proportional to 350.43, 486.89 and 346.07

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Solution

The fourth proportional to 350.43, 486.89 and 346.07 is: 480.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    350.43 : 486.89 = 346.07 : x
  2. Step 2: Convert to fraction form
    350.43/486.89 = 346.07/x
  3. Step 3: Cross multiply
    350.43x = 486.89 × 346.07
  4. Step 4: Simplify right side
    350.43x = 168,493.86
  5. Step 5: Solve for x
    x = 168,493.86/350.43
  6. Step 6: Final answer
    x = 480.82

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.