Home / 218,180.69-301,126.31-126,286.65

Finding the Fourth Proportional to 218,180.69, 301,126.31 and 126,286.65

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Solution

The fourth proportional to 218,180.69, 301,126.31 and 126,286.65 is: 174,296.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,180.69 : 301,126.31 = 126,286.65 : x
  2. Step 2: Convert to fraction form
    218,180.69/301,126.31 = 126,286.65/x
  3. Step 3: Cross multiply
    218,180.69x = 301,126.31 × 126,286.65
  4. Step 4: Simplify right side
    218,180.69x = 38,028,232,285.33
  5. Step 5: Solve for x
    x = 38,028,232,285.33/218,180.69
  6. Step 6: Final answer
    x = 174,296.97

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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.