Home / 213,568.20-320,352.30-172,096.20

Finding the Fourth Proportional to 213,568.20, 320,352.30 and 172,096.20

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Solution

The fourth proportional to 213,568.20, 320,352.30 and 172,096.20 is: 258,144.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,568.20 : 320,352.30 = 172,096.20 : x
  2. Step 2: Convert to fraction form
    213,568.20/320,352.30 = 172,096.20/x
  3. Step 3: Cross multiply
    213,568.20x = 320,352.30 × 172,096.20
  4. Step 4: Simplify right side
    213,568.20x = 55,131,413,491.26
  5. Step 5: Solve for x
    x = 55,131,413,491.26/213,568.20
  6. Step 6: Final answer
    x = 258,144.30

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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.