Home / 217,733.64-300,489.78-122,246.60

Finding the Fourth Proportional to 217,733.64, 300,489.78 and 122,246.60

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Solution

The fourth proportional to 217,733.64, 300,489.78 and 122,246.60 is: 168,710.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,733.64 : 300,489.78 = 122,246.60 : x
  2. Step 2: Convert to fraction form
    217,733.64/300,489.78 = 122,246.60/x
  3. Step 3: Cross multiply
    217,733.64x = 300,489.78 × 122,246.60
  4. Step 4: Simplify right side
    217,733.64x = 36,733,853,939.75
  5. Step 5: Solve for x
    x = 36,733,853,939.75/217,733.64
  6. Step 6: Final answer
    x = 168,710.05

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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.