Home / 396,942.80-596,105.40-210,318.80

Finding the Fourth Proportional to 396,942.80, 596,105.40 and 210,318.80

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Solution

The fourth proportional to 396,942.80, 596,105.40 and 210,318.80 is: 315,844.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,942.80 : 596,105.40 = 210,318.80 : x
  2. Step 2: Convert to fraction form
    396,942.80/596,105.40 = 210,318.80/x
  3. Step 3: Cross multiply
    396,942.80x = 596,105.40 × 210,318.80
  4. Step 4: Simplify right side
    396,942.80x = 125,372,172,401.52
  5. Step 5: Solve for x
    x = 125,372,172,401.52/396,942.80
  6. Step 6: Final answer
    x = 315,844.43

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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.