Home / 356,867.78-492,349.79-203,795.60

Finding the Fourth Proportional to 356,867.78, 492,349.79 and 203,795.60

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Solution

The fourth proportional to 356,867.78, 492,349.79 and 203,795.60 is: 281,164.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,867.78 : 492,349.79 = 203,795.60 : x
  2. Step 2: Convert to fraction form
    356,867.78/492,349.79 = 203,795.60/x
  3. Step 3: Cross multiply
    356,867.78x = 492,349.79 × 203,795.60
  4. Step 4: Simplify right side
    356,867.78x = 100,338,718,910.66
  5. Step 5: Solve for x
    x = 100,338,718,910.66/356,867.78
  6. Step 6: Final answer
    x = 281,164.97

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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.