Home / 206,814.16-309,636.96-168,637.12

Finding the Fourth Proportional to 206,814.16, 309,636.96 and 168,637.12

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Solution

The fourth proportional to 206,814.16, 309,636.96 and 168,637.12 is: 252,479.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,814.16 : 309,636.96 = 168,637.12 : x
  2. Step 2: Convert to fraction form
    206,814.16/309,636.96 = 168,637.12/x
  3. Step 3: Cross multiply
    206,814.16x = 309,636.96 × 168,637.12
  4. Step 4: Simplify right side
    206,814.16x = 52,216,285,179.96
  5. Step 5: Solve for x
    x = 52,216,285,179.96/206,814.16
  6. Step 6: Final answer
    x = 252,479.26

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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.