Home / 217,968.11-300,822.89-122,472.75

Finding the Fourth Proportional to 217,968.11, 300,822.89 and 122,472.75

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Solution

The fourth proportional to 217,968.11, 300,822.89 and 122,472.75 is: 169,027.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,968.11 : 300,822.89 = 122,472.75 : x
  2. Step 2: Convert to fraction form
    217,968.11/300,822.89 = 122,472.75/x
  3. Step 3: Cross multiply
    217,968.11x = 300,822.89 × 122,472.75
  4. Step 4: Simplify right side
    217,968.11x = 36,842,605,988.88
  5. Step 5: Solve for x
    x = 36,842,605,988.88/217,968.11
  6. Step 6: Final answer
    x = 169,027.51

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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.