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Finding the Fourth Proportional to 255,769.84, 352,958.52 and 142,589.68

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Solution

The fourth proportional to 255,769.84, 352,958.52 and 142,589.68 is: 196,771.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,769.84 : 352,958.52 = 142,589.68 : x
  2. Step 2: Convert to fraction form
    255,769.84/352,958.52 = 142,589.68/x
  3. Step 3: Cross multiply
    255,769.84x = 352,958.52 × 142,589.68
  4. Step 4: Simplify right side
    255,769.84x = 50,328,242,420.07
  5. Step 5: Solve for x
    x = 50,328,242,420.07/255,769.84
  6. Step 6: Final answer
    x = 196,771.61

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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.