Home / 218,645.32-301,729.08-123,182.68

Finding the Fourth Proportional to 218,645.32, 301,729.08 and 123,182.68

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Solution

The fourth proportional to 218,645.32, 301,729.08 and 123,182.68 is: 169,991.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,645.32 : 301,729.08 = 123,182.68 : x
  2. Step 2: Convert to fraction form
    218,645.32/301,729.08 = 123,182.68/x
  3. Step 3: Cross multiply
    218,645.32x = 301,729.08 × 123,182.68
  4. Step 4: Simplify right side
    218,645.32x = 37,167,796,708.33
  5. Step 5: Solve for x
    x = 37,167,796,708.33/218,645.32
  6. Step 6: Final answer
    x = 169,991.27

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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.