Home / 279,839.39-386,188.79-159,001.14

Finding the Fourth Proportional to 279,839.39, 386,188.79 and 159,001.14

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Solution

The fourth proportional to 279,839.39, 386,188.79 and 159,001.14 is: 219,427.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,839.39 : 386,188.79 = 159,001.14 : x
  2. Step 2: Convert to fraction form
    279,839.39/386,188.79 = 159,001.14/x
  3. Step 3: Cross multiply
    279,839.39x = 386,188.79 × 159,001.14
  4. Step 4: Simplify right side
    279,839.39x = 61,404,458,965.61
  5. Step 5: Solve for x
    x = 61,404,458,965.61/279,839.39
  6. Step 6: Final answer
    x = 219,427.50

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1.5x scale

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.