Home / 215,969.10-324,099.45-140,906.40

Finding the Fourth Proportional to 215,969.10, 324,099.45 and 140,906.40

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Solution

The fourth proportional to 215,969.10, 324,099.45 and 140,906.40 is: 211,454.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,969.10 : 324,099.45 = 140,906.40 : x
  2. Step 2: Convert to fraction form
    215,969.10/324,099.45 = 140,906.40/x
  3. Step 3: Cross multiply
    215,969.10x = 324,099.45 × 140,906.40
  4. Step 4: Simplify right side
    215,969.10x = 45,667,686,741.48
  5. Step 5: Solve for x
    x = 45,667,686,741.48/215,969.10
  6. Step 6: Final answer
    x = 211,454.73

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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.