Home / 213,541.80-320,226.30-73,228.20

Finding the Fourth Proportional to 213,541.80, 320,226.30 and 73,228.20

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Solution

The fourth proportional to 213,541.80, 320,226.30 and 73,228.20 is: 109,812.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,541.80 : 320,226.30 = 73,228.20 : x
  2. Step 2: Convert to fraction form
    213,541.80/320,226.30 = 73,228.20/x
  3. Step 3: Cross multiply
    213,541.80x = 320,226.30 × 73,228.20
  4. Step 4: Simplify right side
    213,541.80x = 23,449,595,541.66
  5. Step 5: Solve for x
    x = 23,449,595,541.66/213,541.80
  6. Step 6: Final answer
    x = 109,812.67

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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.