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Finding the Fourth Proportional to 217,744.49, 300,502.17 and 120,959.39

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Solution

The fourth proportional to 217,744.49, 300,502.17 and 120,959.39 is: 166,932.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,744.49 : 300,502.17 = 120,959.39 : x
  2. Step 2: Convert to fraction form
    217,744.49/300,502.17 = 120,959.39/x
  3. Step 3: Cross multiply
    217,744.49x = 300,502.17 × 120,959.39
  4. Step 4: Simplify right side
    217,744.49x = 36,348,557,674.37
  5. Step 5: Solve for x
    x = 36,348,557,674.37/217,744.49
  6. Step 6: Final answer
    x = 166,932.16

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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.