Home / 206,566.40-309,849.60-199,349.30

Finding the Fourth Proportional to 206,566.40, 309,849.60 and 199,349.30

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Solution

The fourth proportional to 206,566.40, 309,849.60 and 199,349.30 is: 299,023.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,566.40 : 309,849.60 = 199,349.30 : x
  2. Step 2: Convert to fraction form
    206,566.40/309,849.60 = 199,349.30/x
  3. Step 3: Cross multiply
    206,566.40x = 309,849.60 × 199,349.30
  4. Step 4: Simplify right side
    206,566.40x = 61,768,300,865.28
  5. Step 5: Solve for x
    x = 61,768,300,865.28/206,566.40
  6. Step 6: Final answer
    x = 299,023.95

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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.