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Finding the Fourth Proportional to 330,662.39, 495,599.81 and 230,279.09

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Solution

The fourth proportional to 330,662.39, 495,599.81 and 230,279.09 is: 345,144.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,662.39 : 495,599.81 = 230,279.09 : x
  2. Step 2: Convert to fraction form
    330,662.39/495,599.81 = 230,279.09/x
  3. Step 3: Cross multiply
    330,662.39x = 495,599.81 × 230,279.09
  4. Step 4: Simplify right side
    330,662.39x = 114,126,269,621.58
  5. Step 5: Solve for x
    x = 114,126,269,621.58/330,662.39
  6. Step 6: Final answer
    x = 345,144.40

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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.