Home / 213,860.44-320,644.86-108,476.20

Finding the Fourth Proportional to 213,860.44, 320,644.86 and 108,476.20

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Solution

The fourth proportional to 213,860.44, 320,644.86 and 108,476.20 is: 162,640.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,860.44 : 320,644.86 = 108,476.20 : x
  2. Step 2: Convert to fraction form
    213,860.44/320,644.86 = 108,476.20/x
  3. Step 3: Cross multiply
    213,860.44x = 320,644.86 × 108,476.20
  4. Step 4: Simplify right side
    213,860.44x = 34,782,335,962.33
  5. Step 5: Solve for x
    x = 34,782,335,962.33/213,860.44
  6. Step 6: Final answer
    x = 162,640.35

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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.