Home / 320,989.78-442,965.19-185,022.83

Finding the Fourth Proportional to 320,989.78, 442,965.19 and 185,022.83

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Solution

The fourth proportional to 320,989.78, 442,965.19 and 185,022.83 is: 255,331.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,989.78 : 442,965.19 = 185,022.83 : x
  2. Step 2: Convert to fraction form
    320,989.78/442,965.19 = 185,022.83/x
  3. Step 3: Cross multiply
    320,989.78x = 442,965.19 × 185,022.83
  4. Step 4: Simplify right side
    320,989.78x = 81,958,669,905.35
  5. Step 5: Solve for x
    x = 81,958,669,905.35/320,989.78
  6. Step 6: Final answer
    x = 255,331.09

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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.