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Finding the Fourth Proportional to 419,907.53, 579,481.08 and 236,149.61

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Solution

The fourth proportional to 419,907.53, 579,481.08 and 236,149.61 is: 325,891.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,907.53 : 579,481.08 = 236,149.61 : x
  2. Step 2: Convert to fraction form
    419,907.53/579,481.08 = 236,149.61/x
  3. Step 3: Cross multiply
    419,907.53x = 579,481.08 × 236,149.61
  4. Step 4: Simplify right side
    419,907.53x = 136,844,228,146.97
  5. Step 5: Solve for x
    x = 136,844,228,146.97/419,907.53
  6. Step 6: Final answer
    x = 325,891.35

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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.