Home / 447,289.30-670,704.11-131,705.20

Finding the Fourth Proportional to 447,289.30, 670,704.11 and 131,705.20

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Solution

The fourth proportional to 447,289.30, 670,704.11 and 131,705.20 is: 197,490.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,289.30 : 670,704.11 = 131,705.20 : x
  2. Step 2: Convert to fraction form
    447,289.30/670,704.11 = 131,705.20/x
  3. Step 3: Cross multiply
    447,289.30x = 670,704.11 × 131,705.20
  4. Step 4: Simplify right side
    447,289.30x = 88,335,218,948.37
  5. Step 5: Solve for x
    x = 88,335,218,948.37/447,289.30
  6. Step 6: Final answer
    x = 197,490.12

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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.