Home / 311,839.44-430,306.30-230,211.11

Finding the Fourth Proportional to 311,839.44, 430,306.30 and 230,211.11

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Solution

The fourth proportional to 311,839.44, 430,306.30 and 230,211.11 is: 317,667.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,839.44 : 430,306.30 = 230,211.11 : x
  2. Step 2: Convert to fraction form
    311,839.44/430,306.30 = 230,211.11/x
  3. Step 3: Cross multiply
    311,839.44x = 430,306.30 × 230,211.11
  4. Step 4: Simplify right side
    311,839.44x = 99,061,291,679.05
  5. Step 5: Solve for x
    x = 99,061,291,679.05/311,839.44
  6. Step 6: Final answer
    x = 317,667.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.