Home / 447,308.30-670,732.61-131,724.20

Finding the Fourth Proportional to 447,308.30, 670,732.61 and 131,724.20

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Solution

The fourth proportional to 447,308.30, 670,732.61 and 131,724.20 is: 197,518.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,308.30 : 670,732.61 = 131,724.20 : x
  2. Step 2: Convert to fraction form
    447,308.30/670,732.61 = 131,724.20/x
  3. Step 3: Cross multiply
    447,308.30x = 670,732.61 × 131,724.20
  4. Step 4: Simplify right side
    447,308.30x = 88,351,716,466.16
  5. Step 5: Solve for x
    x = 88,351,716,466.16/447,308.30
  6. Step 6: Final answer
    x = 197,518.62

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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.