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Finding the Fourth Proportional to 219,620.75, 303,076.64 and 119,018.75

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Solution

The fourth proportional to 219,620.75, 303,076.64 and 119,018.75 is: 164,245.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,620.75 : 303,076.64 = 119,018.75 : x
  2. Step 2: Convert to fraction form
    219,620.75/303,076.64 = 119,018.75/x
  3. Step 3: Cross multiply
    219,620.75x = 303,076.64 × 119,018.75
  4. Step 4: Simplify right side
    219,620.75x = 36,071,802,847
  5. Step 5: Solve for x
    x = 36,071,802,847/219,620.75
  6. Step 6: Final answer
    x = 164,245.88

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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.