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Finding the Fourth Proportional to 383.26, 573.77 and 346.79

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Solution

The fourth proportional to 383.26, 573.77 and 346.79 is: 519.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    383.26 : 573.77 = 346.79 : x
  2. Step 2: Convert to fraction form
    383.26/573.77 = 346.79/x
  3. Step 3: Cross multiply
    383.26x = 573.77 × 346.79
  4. Step 4: Simplify right side
    383.26x = 198,977.70
  5. Step 5: Solve for x
    x = 198,977.70/383.26
  6. Step 6: Final answer
    x = 519.17

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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.