Home / 209,680.40-313,906.20-185,104.40

Finding the Fourth Proportional to 209,680.40, 313,906.20 and 185,104.40

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Solution

The fourth proportional to 209,680.40, 313,906.20 and 185,104.40 is: 277,114.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,680.40 : 313,906.20 = 185,104.40 : x
  2. Step 2: Convert to fraction form
    209,680.40/313,906.20 = 185,104.40/x
  3. Step 3: Cross multiply
    209,680.40x = 313,906.20 × 185,104.40
  4. Step 4: Simplify right side
    209,680.40x = 58,105,418,807.28
  5. Step 5: Solve for x
    x = 58,105,418,807.28/209,680.40
  6. Step 6: Final answer
    x = 277,114.21

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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.