Home / 217,747.37-300,491.36-122,256.11

Finding the Fourth Proportional to 217,747.37, 300,491.36 and 122,256.11

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Solution

The fourth proportional to 217,747.37, 300,491.36 and 122,256.11 is: 168,713.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,747.37 : 300,491.36 = 122,256.11 : x
  2. Step 2: Convert to fraction form
    217,747.37/300,491.36 = 122,256.11/x
  3. Step 3: Cross multiply
    217,747.37x = 300,491.36 × 122,256.11
  4. Step 4: Simplify right side
    217,747.37x = 36,736,905,819.08
  5. Step 5: Solve for x
    x = 36,736,905,819.08/217,747.37
  6. Step 6: Final answer
    x = 168,713.43

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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.