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Finding the Fourth Proportional to 339,481.70, 468,289.86 and 211,935.86

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Solution

The fourth proportional to 339,481.70, 468,289.86 and 211,935.86 is: 292,349.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,481.70 : 468,289.86 = 211,935.86 : x
  2. Step 2: Convert to fraction form
    339,481.70/468,289.86 = 211,935.86/x
  3. Step 3: Cross multiply
    339,481.70x = 468,289.86 × 211,935.86
  4. Step 4: Simplify right side
    339,481.70x = 99,247,414,208.38
  5. Step 5: Solve for x
    x = 99,247,414,208.38/339,481.70
  6. Step 6: Final answer
    x = 292,349.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.