Home / 356,091.08-491,327.12-210,824.73

Finding the Fourth Proportional to 356,091.08, 491,327.12 and 210,824.73

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Solution

The fourth proportional to 356,091.08, 491,327.12 and 210,824.73 is: 290,891.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,091.08 : 491,327.12 = 210,824.73 : x
  2. Step 2: Convert to fraction form
    356,091.08/491,327.12 = 210,824.73/x
  3. Step 3: Cross multiply
    356,091.08x = 491,327.12 × 210,824.73
  4. Step 4: Simplify right side
    356,091.08x = 103,583,906,361.55
  5. Step 5: Solve for x
    x = 103,583,906,361.55/356,091.08
  6. Step 6: Final answer
    x = 290,891.61

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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.