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Finding the Fourth Proportional to 309,195.80, 463,604.16 and 131,601.68

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Solution

The fourth proportional to 309,195.80, 463,604.16 and 131,601.68 is: 197,321.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,195.80 : 463,604.16 = 131,601.68 : x
  2. Step 2: Convert to fraction form
    309,195.80/463,604.16 = 131,601.68/x
  3. Step 3: Cross multiply
    309,195.80x = 463,604.16 × 131,601.68
  4. Step 4: Simplify right side
    309,195.80x = 61,011,086,310.99
  5. Step 5: Solve for x
    x = 61,011,086,310.99/309,195.80
  6. Step 6: Final answer
    x = 197,321.85

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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.