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Finding the Fourth Proportional to 378,859.18, 522,893.46 and 225,907.24

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Solution

The fourth proportional to 378,859.18, 522,893.46 and 225,907.24 is: 311,792.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,859.18 : 522,893.46 = 225,907.24 : x
  2. Step 2: Convert to fraction form
    378,859.18/522,893.46 = 225,907.24/x
  3. Step 3: Cross multiply
    378,859.18x = 522,893.46 × 225,907.24
  4. Step 4: Simplify right side
    378,859.18x = 118,125,418,362.65
  5. Step 5: Solve for x
    x = 118,125,418,362.65/378,859.18
  6. Step 6: Final answer
    x = 311,792.41

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1.5x scale

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.