Home / 215,979.20-324,019.28-73,825.57

Finding the Fourth Proportional to 215,979.20, 324,019.28 and 73,825.57

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Solution

The fourth proportional to 215,979.20, 324,019.28 and 73,825.57 is: 110,755.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,979.20 : 324,019.28 = 73,825.57 : x
  2. Step 2: Convert to fraction form
    215,979.20/324,019.28 = 73,825.57/x
  3. Step 3: Cross multiply
    215,979.20x = 324,019.28 × 73,825.57
  4. Step 4: Simplify right side
    215,979.20x = 23,920,907,411.51
  5. Step 5: Solve for x
    x = 23,920,907,411.51/215,979.20
  6. Step 6: Final answer
    x = 110,755.61

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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.