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Finding the Fourth Proportional to 250,274.32, 345,101.80 and 159,486.47

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Solution

The fourth proportional to 250,274.32, 345,101.80 and 159,486.47 is: 219,914.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,274.32 : 345,101.80 = 159,486.47 : x
  2. Step 2: Convert to fraction form
    250,274.32/345,101.80 = 159,486.47/x
  3. Step 3: Cross multiply
    250,274.32x = 345,101.80 × 159,486.47
  4. Step 4: Simplify right side
    250,274.32x = 55,039,067,872.65
  5. Step 5: Solve for x
    x = 55,039,067,872.65/250,274.32
  6. Step 6: Final answer
    x = 219,914.96

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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.