Home / 378,749.20-522,684.75-208,994.26

Finding the Fourth Proportional to 378,749.20, 522,684.75 and 208,994.26

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Solution

The fourth proportional to 378,749.20, 522,684.75 and 208,994.26 is: 288,418.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,749.20 : 522,684.75 = 208,994.26 : x
  2. Step 2: Convert to fraction form
    378,749.20/522,684.75 = 208,994.26/x
  3. Step 3: Cross multiply
    378,749.20x = 522,684.75 × 208,994.26
  4. Step 4: Simplify right side
    378,749.20x = 109,238,112,539.54
  5. Step 5: Solve for x
    x = 109,238,112,539.54/378,749.20
  6. Step 6: Final answer
    x = 288,418.07

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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.