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Finding the Fourth Proportional to 217,463.88, 300,100.70 and 126,882.12

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Solution

The fourth proportional to 217,463.88, 300,100.70 and 126,882.12 is: 175,097.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,463.88 : 300,100.70 = 126,882.12 : x
  2. Step 2: Convert to fraction form
    217,463.88/300,100.70 = 126,882.12/x
  3. Step 3: Cross multiply
    217,463.88x = 300,100.70 × 126,882.12
  4. Step 4: Simplify right side
    217,463.88x = 38,077,413,029.48
  5. Step 5: Solve for x
    x = 38,077,413,029.48/217,463.88
  6. Step 6: Final answer
    x = 175,097.64

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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.