Home / 378,329.14-522,090.78-208,563.26

Finding the Fourth Proportional to 378,329.14, 522,090.78 and 208,563.26

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Solution

The fourth proportional to 378,329.14, 522,090.78 and 208,563.26 is: 287,815.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,329.14 : 522,090.78 = 208,563.26 : x
  2. Step 2: Convert to fraction form
    378,329.14/522,090.78 = 208,563.26/x
  3. Step 3: Cross multiply
    378,329.14x = 522,090.78 × 208,563.26
  4. Step 4: Simplify right side
    378,329.14x = 108,888,955,092.74
  5. Step 5: Solve for x
    x = 108,888,955,092.74/378,329.14
  6. Step 6: Final answer
    x = 287,815.41

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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.