Home / 207,622.20-311,433.30-203,685.60

Finding the Fourth Proportional to 207,622.20, 311,433.30 and 203,685.60

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Solution

The fourth proportional to 207,622.20, 311,433.30 and 203,685.60 is: 305,528.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,622.20 : 311,433.30 = 203,685.60 : x
  2. Step 2: Convert to fraction form
    207,622.20/311,433.30 = 203,685.60/x
  3. Step 3: Cross multiply
    207,622.20x = 311,433.30 × 203,685.60
  4. Step 4: Simplify right side
    207,622.20x = 63,434,478,570.48
  5. Step 5: Solve for x
    x = 63,434,478,570.48/207,622.20
  6. Step 6: Final answer
    x = 305,528.40

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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.