Home / 206,475.23-309,451.59-117,778.61

Finding the Fourth Proportional to 206,475.23, 309,451.59 and 117,778.61

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Solution

The fourth proportional to 206,475.23, 309,451.59 and 117,778.61 is: 176,518.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,475.23 : 309,451.59 = 117,778.61 : x
  2. Step 2: Convert to fraction form
    206,475.23/309,451.59 = 117,778.61/x
  3. Step 3: Cross multiply
    206,475.23x = 309,451.59 × 117,778.61
  4. Step 4: Simplify right side
    206,475.23x = 36,446,776,585.23
  5. Step 5: Solve for x
    x = 36,446,776,585.23/206,475.23
  6. Step 6: Final answer
    x = 176,518.89

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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.