Home / 213,621.22-320,450.01-55,849.42

Finding the Fourth Proportional to 213,621.22, 320,450.01 and 55,849.42

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Solution

The fourth proportional to 213,621.22, 320,450.01 and 55,849.42 is: 83,778.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,621.22 : 320,450.01 = 55,849.42 : x
  2. Step 2: Convert to fraction form
    213,621.22/320,450.01 = 55,849.42/x
  3. Step 3: Cross multiply
    213,621.22x = 320,450.01 × 55,849.42
  4. Step 4: Simplify right side
    213,621.22x = 17,896,947,197.49
  5. Step 5: Solve for x
    x = 17,896,947,197.49/213,621.22
  6. Step 6: Final answer
    x = 83,778.88

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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.