Home / 447,051.30-670,346.10-131,467.20

Finding the Fourth Proportional to 447,051.30, 670,346.10 and 131,467.20

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Solution

The fourth proportional to 447,051.30, 670,346.10 and 131,467.20 is: 197,132.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,051.30 : 670,346.10 = 131,467.20 : x
  2. Step 2: Convert to fraction form
    447,051.30/670,346.10 = 131,467.20/x
  3. Step 3: Cross multiply
    447,051.30x = 670,346.10 × 131,467.20
  4. Step 4: Simplify right side
    447,051.30x = 88,128,524,797.92
  5. Step 5: Solve for x
    x = 88,128,524,797.92/447,051.30
  6. Step 6: Final answer
    x = 197,132.91

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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.