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Finding the Fourth Proportional to 330,757.63, 495,742.78 and 230,374.33

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Solution

The fourth proportional to 330,757.63, 495,742.78 and 230,374.33 is: 345,287.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,757.63 : 495,742.78 = 230,374.33 : x
  2. Step 2: Convert to fraction form
    330,757.63/495,742.78 = 230,374.33/x
  3. Step 3: Cross multiply
    330,757.63x = 495,742.78 × 230,374.33
  4. Step 4: Simplify right side
    330,757.63x = 114,206,409,843.45
  5. Step 5: Solve for x
    x = 114,206,409,843.45/330,757.63
  6. Step 6: Final answer
    x = 345,287.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.