Home / 279,733.82-386,175.63-189,566.18

Finding the Fourth Proportional to 279,733.82, 386,175.63 and 189,566.18

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Solution

The fourth proportional to 279,733.82, 386,175.63 and 189,566.18 is: 261,698.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,733.82 : 386,175.63 = 189,566.18 : x
  2. Step 2: Convert to fraction form
    279,733.82/386,175.63 = 189,566.18/x
  3. Step 3: Cross multiply
    279,733.82x = 386,175.63 × 189,566.18
  4. Step 4: Simplify right side
    279,733.82x = 73,205,838,988.19
  5. Step 5: Solve for x
    x = 73,205,838,988.19/279,733.82
  6. Step 6: Final answer
    x = 261,698.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.