Home / 207,914.70-311,872.05-113,436.30

Finding the Fourth Proportional to 207,914.70, 311,872.05 and 113,436.30

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Solution

The fourth proportional to 207,914.70, 311,872.05 and 113,436.30 is: 170,154.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,914.70 : 311,872.05 = 113,436.30 : x
  2. Step 2: Convert to fraction form
    207,914.70/311,872.05 = 113,436.30/x
  3. Step 3: Cross multiply
    207,914.70x = 311,872.05 × 113,436.30
  4. Step 4: Simplify right side
    207,914.70x = 35,377,611,425.42
  5. Step 5: Solve for x
    x = 35,377,611,425.42/207,914.70
  6. Step 6: Final answer
    x = 170,154.45

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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.