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Finding the Fourth Proportional to 330,606.56, 495,618.96 and 131,067.20

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Solution

The fourth proportional to 330,606.56, 495,618.96 and 131,067.20 is: 196,485.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,606.56 : 495,618.96 = 131,067.20 : x
  2. Step 2: Convert to fraction form
    330,606.56/495,618.96 = 131,067.20/x
  3. Step 3: Cross multiply
    330,606.56x = 495,618.96 × 131,067.20
  4. Step 4: Simplify right side
    330,606.56x = 64,959,389,354.11
  5. Step 5: Solve for x
    x = 64,959,389,354.11/330,606.56
  6. Step 6: Final answer
    x = 196,485.48

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1.5x scale

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.