Home / 207,669.20-311,580.60-199,989.20

Finding the Fourth Proportional to 207,669.20, 311,580.60 and 199,989.20

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Solution

The fourth proportional to 207,669.20, 311,580.60 and 199,989.20 is: 300,057.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,669.20 : 311,580.60 = 199,989.20 : x
  2. Step 2: Convert to fraction form
    207,669.20/311,580.60 = 199,989.20/x
  3. Step 3: Cross multiply
    207,669.20x = 311,580.60 × 199,989.20
  4. Step 4: Simplify right side
    207,669.20x = 62,312,754,929.52
  5. Step 5: Solve for x
    x = 62,312,754,929.52/207,669.20
  6. Step 6: Final answer
    x = 300,057.76

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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.