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Finding the Fourth Proportional to 330,323.22, 495,309.87 and 130,635.54

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Solution

The fourth proportional to 330,323.22, 495,309.87 and 130,635.54 is: 195,884.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,323.22 : 495,309.87 = 130,635.54 : x
  2. Step 2: Convert to fraction form
    330,323.22/495,309.87 = 130,635.54/x
  3. Step 3: Cross multiply
    330,323.22x = 495,309.87 × 130,635.54
  4. Step 4: Simplify right side
    330,323.22x = 64,705,072,334.78
  5. Step 5: Solve for x
    x = 64,705,072,334.78/330,323.22
  6. Step 6: Final answer
    x = 195,884.12

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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.