Home / 207,860.20-311,790.30-144,874.60

Finding the Fourth Proportional to 207,860.20, 311,790.30 and 144,874.60

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Solution

The fourth proportional to 207,860.20, 311,790.30 and 144,874.60 is: 217,311.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,860.20 : 311,790.30 = 144,874.60 : x
  2. Step 2: Convert to fraction form
    207,860.20/311,790.30 = 144,874.60/x
  3. Step 3: Cross multiply
    207,860.20x = 311,790.30 × 144,874.60
  4. Step 4: Simplify right side
    207,860.20x = 45,170,494,996.38
  5. Step 5: Solve for x
    x = 45,170,494,996.38/207,860.20
  6. Step 6: Final answer
    x = 217,311.90

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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.