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Finding the Fourth Proportional to 339,800.08, 509,697.82 and 115,318.55

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Solution

The fourth proportional to 339,800.08, 509,697.82 and 115,318.55 is: 172,977.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,800.08 : 509,697.82 = 115,318.55 : x
  2. Step 2: Convert to fraction form
    339,800.08/509,697.82 = 115,318.55/x
  3. Step 3: Cross multiply
    339,800.08x = 509,697.82 × 115,318.55
  4. Step 4: Simplify right side
    339,800.08x = 58,777,613,540.56
  5. Step 5: Solve for x
    x = 58,777,613,540.56/339,800.08
  6. Step 6: Final answer
    x = 172,977.04

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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.