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Finding the Fourth Proportional to 303,780.58, 419,218.41 and 169,644.58

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Solution

The fourth proportional to 303,780.58, 419,218.41 and 169,644.58 is: 234,110.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,780.58 : 419,218.41 = 169,644.58 : x
  2. Step 2: Convert to fraction form
    303,780.58/419,218.41 = 169,644.58/x
  3. Step 3: Cross multiply
    303,780.58x = 419,218.41 × 169,644.58
  4. Step 4: Simplify right side
    303,780.58x = 71,118,131,092.72
  5. Step 5: Solve for x
    x = 71,118,131,092.72/303,780.58
  6. Step 6: Final answer
    x = 234,110.20

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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.