Home / 321,110.32-442,918.66-206,533.96

Finding the Fourth Proportional to 321,110.32, 442,918.66 and 206,533.96

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Solution

The fourth proportional to 321,110.32, 442,918.66 and 206,533.96 is: 284,879.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,110.32 : 442,918.66 = 206,533.96 : x
  2. Step 2: Convert to fraction form
    321,110.32/442,918.66 = 206,533.96/x
  3. Step 3: Cross multiply
    321,110.32x = 442,918.66 × 206,533.96
  4. Step 4: Simplify right side
    321,110.32x = 91,477,744,807.69
  5. Step 5: Solve for x
    x = 91,477,744,807.69/321,110.32
  6. Step 6: Final answer
    x = 284,879.49

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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.