Home / 378,326.34-522,091.94-208,556.74

Finding the Fourth Proportional to 378,326.34, 522,091.94 and 208,556.74

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Solution

The fourth proportional to 378,326.34, 522,091.94 and 208,556.74 is: 287,809.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,326.34 : 522,091.94 = 208,556.74 : x
  2. Step 2: Convert to fraction form
    378,326.34/522,091.94 = 208,556.74/x
  3. Step 3: Cross multiply
    378,326.34x = 522,091.94 × 208,556.74
  4. Step 4: Simplify right side
    378,326.34x = 108,885,792,986.68
  5. Step 5: Solve for x
    x = 108,885,792,986.68/378,326.34
  6. Step 6: Final answer
    x = 287,809.18

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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.