Home / 447,000.30-670,500.45-131,489.10

Finding the Fourth Proportional to 447,000.30, 670,500.45 and 131,489.10

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Solution

The fourth proportional to 447,000.30, 670,500.45 and 131,489.10 is: 197,233.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,000.30 : 670,500.45 = 131,489.10 : x
  2. Step 2: Convert to fraction form
    447,000.30/670,500.45 = 131,489.10/x
  3. Step 3: Cross multiply
    447,000.30x = 670,500.45 × 131,489.10
  4. Step 4: Simplify right side
    447,000.30x = 88,163,500,720.10
  5. Step 5: Solve for x
    x = 88,163,500,720.10/447,000.30
  6. Step 6: Final answer
    x = 197,233.65

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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.