Home / 318,311.40-477,467.10-131,226.60

Finding the Fourth Proportional to 318,311.40, 477,467.10 and 131,226.60

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Solution

The fourth proportional to 318,311.40, 477,467.10 and 131,226.60 is: 196,839.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,311.40 : 477,467.10 = 131,226.60 : x
  2. Step 2: Convert to fraction form
    318,311.40/477,467.10 = 131,226.60/x
  3. Step 3: Cross multiply
    318,311.40x = 477,467.10 × 131,226.60
  4. Step 4: Simplify right side
    318,311.40x = 62,656,384,144.86
  5. Step 5: Solve for x
    x = 62,656,384,144.86/318,311.40
  6. Step 6: Final answer
    x = 196,839.90

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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.