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Finding the Fourth Proportional to 339.12, 505.32 and 336.27

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Solution

The fourth proportional to 339.12, 505.32 and 336.27 is: 501.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    339.12 : 505.32 = 336.27 : x
  2. Step 2: Convert to fraction form
    339.12/505.32 = 336.27/x
  3. Step 3: Cross multiply
    339.12x = 505.32 × 336.27
  4. Step 4: Simplify right side
    339.12x = 169,923.96
  5. Step 5: Solve for x
    x = 169,923.96/339.12
  6. Step 6: Final answer
    x = 501.07

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.