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Finding the Fourth Proportional to 378,104.58, 521,759.99 and 225,154.00

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Solution

The fourth proportional to 378,104.58, 521,759.99 and 225,154.00 is: 310,698.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,104.58 : 521,759.99 = 225,154.00 : x
  2. Step 2: Convert to fraction form
    378,104.58/521,759.99 = 225,154.00/x
  3. Step 3: Cross multiply
    378,104.58x = 521,759.99 × 225,154.00
  4. Step 4: Simplify right side
    378,104.58x = 117,476,351,787.62
  5. Step 5: Solve for x
    x = 117,476,351,787.62/378,104.58
  6. Step 6: Final answer
    x = 310,698.04

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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.