Home / 205,016.20-307,524.30-186,645.40

Finding the Fourth Proportional to 205,016.20, 307,524.30 and 186,645.40

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Solution

The fourth proportional to 205,016.20, 307,524.30 and 186,645.40 is: 279,968.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,016.20 : 307,524.30 = 186,645.40 : x
  2. Step 2: Convert to fraction form
    205,016.20/307,524.30 = 186,645.40/x
  3. Step 3: Cross multiply
    205,016.20x = 307,524.30 × 186,645.40
  4. Step 4: Simplify right side
    205,016.20x = 57,397,995,983.22
  5. Step 5: Solve for x
    x = 57,397,995,983.22/205,016.20
  6. Step 6: Final answer
    x = 279,968.10

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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.