Home / 213,480.64-320,421.60-108,375.04

Finding the Fourth Proportional to 213,480.64, 320,421.60 and 108,375.04

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Solution

The fourth proportional to 213,480.64, 320,421.60 and 108,375.04 is: 162,664.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,480.64 : 320,421.60 = 108,375.04 : x
  2. Step 2: Convert to fraction form
    213,480.64/320,421.60 = 108,375.04/x
  3. Step 3: Cross multiply
    213,480.64x = 320,421.60 × 108,375.04
  4. Step 4: Simplify right side
    213,480.64x = 34,725,703,716.86
  5. Step 5: Solve for x
    x = 34,725,703,716.86/213,480.64
  6. Step 6: Final answer
    x = 162,664.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.