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Finding the Fourth Proportional to 213,977.26, 320,900.01 and 80,920.18

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Solution

The fourth proportional to 213,977.26, 320,900.01 and 80,920.18 is: 121,355.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,977.26 : 320,900.01 = 80,920.18 : x
  2. Step 2: Convert to fraction form
    213,977.26/320,900.01 = 80,920.18/x
  3. Step 3: Cross multiply
    213,977.26x = 320,900.01 × 80,920.18
  4. Step 4: Simplify right side
    213,977.26x = 25,967,286,571.20
  5. Step 5: Solve for x
    x = 25,967,286,571.20/213,977.26
  6. Step 6: Final answer
    x = 121,355.36

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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.