Home / 378,633.20-522,473.37-208,867.28

Finding the Fourth Proportional to 378,633.20, 522,473.37 and 208,867.28

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Solution

The fourth proportional to 378,633.20, 522,473.37 and 208,867.28 is: 288,214.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,633.20 : 522,473.37 = 208,867.28 : x
  2. Step 2: Convert to fraction form
    378,633.20/522,473.37 = 208,867.28/x
  3. Step 3: Cross multiply
    378,633.20x = 522,473.37 × 208,867.28
  4. Step 4: Simplify right side
    378,633.20x = 109,127,591,664.33
  5. Step 5: Solve for x
    x = 109,127,591,664.33/378,633.20
  6. Step 6: Final answer
    x = 288,214.53

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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.