Home / 256,578.87-353,848.05-165,839.43

Finding the Fourth Proportional to 256,578.87, 353,848.05 and 165,839.43

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Solution

The fourth proportional to 256,578.87, 353,848.05 and 165,839.43 is: 228,709.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,578.87 : 353,848.05 = 165,839.43 : x
  2. Step 2: Convert to fraction form
    256,578.87/353,848.05 = 165,839.43/x
  3. Step 3: Cross multiply
    256,578.87x = 353,848.05 × 165,839.43
  4. Step 4: Simplify right side
    256,578.87x = 58,681,958,918.61
  5. Step 5: Solve for x
    x = 58,681,958,918.61/256,578.87
  6. Step 6: Final answer
    x = 228,709.24

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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.