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Finding the Fourth Proportional to 447,396.84, 670,863.60 and 131,812.20

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Solution

The fourth proportional to 447,396.84, 670,863.60 and 131,812.20 is: 197,650.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,396.84 : 670,863.60 = 131,812.20 : x
  2. Step 2: Convert to fraction form
    447,396.84/670,863.60 = 131,812.20/x
  3. Step 3: Cross multiply
    447,396.84x = 670,863.60 × 131,812.20
  4. Step 4: Simplify right side
    447,396.84x = 88,428,007,015.92
  5. Step 5: Solve for x
    x = 88,428,007,015.92/447,396.84
  6. Step 6: Final answer
    x = 197,650.05

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1.5x scale

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.