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Finding the Fourth Proportional to 217,996.70, 300,843.06 and 122,501.48

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Solution

The fourth proportional to 217,996.70, 300,843.06 and 122,501.48 is: 169,056.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,996.70 : 300,843.06 = 122,501.48 : x
  2. Step 2: Convert to fraction form
    217,996.70/300,843.06 = 122,501.48/x
  3. Step 3: Cross multiply
    217,996.70x = 300,843.06 × 122,501.48
  4. Step 4: Simplify right side
    217,996.70x = 36,853,720,097.73
  5. Step 5: Solve for x
    x = 36,853,720,097.73/217,996.70
  6. Step 6: Final answer
    x = 169,056.32

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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.