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Finding the Fourth Proportional to 447,689.20, 670,950.60 and 181,231.60

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Solution

The fourth proportional to 447,689.20, 670,950.60 and 181,231.60 is: 271,611.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,689.20 : 670,950.60 = 181,231.60 : x
  2. Step 2: Convert to fraction form
    447,689.20/670,950.60 = 181,231.60/x
  3. Step 3: Cross multiply
    447,689.20x = 670,950.60 × 181,231.60
  4. Step 4: Simplify right side
    447,689.20x = 121,597,450,758.96
  5. Step 5: Solve for x
    x = 121,597,450,758.96/447,689.20
  6. Step 6: Final answer
    x = 271,611.31

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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.