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Finding the Fourth Proportional to 250,453.62, 345,661.43 and 154,991.07

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Solution

The fourth proportional to 250,453.62, 345,661.43 and 154,991.07 is: 213,909.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,453.62 : 345,661.43 = 154,991.07 : x
  2. Step 2: Convert to fraction form
    250,453.62/345,661.43 = 154,991.07/x
  3. Step 3: Cross multiply
    250,453.62x = 345,661.43 × 154,991.07
  4. Step 4: Simplify right side
    250,453.62x = 53,574,434,118.47
  5. Step 5: Solve for x
    x = 53,574,434,118.47/250,453.62
  6. Step 6: Final answer
    x = 213,909.60

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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.