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Finding the Fourth Proportional to 330,607.06, 495,619.71 and 131,067.70

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Solution

The fourth proportional to 330,607.06, 495,619.71 and 131,067.70 is: 196,486.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,607.06 : 495,619.71 = 131,067.70 : x
  2. Step 2: Convert to fraction form
    330,607.06/495,619.71 = 131,067.70/x
  3. Step 3: Cross multiply
    330,607.06x = 495,619.71 × 131,067.70
  4. Step 4: Simplify right side
    330,607.06x = 64,959,735,464.37
  5. Step 5: Solve for x
    x = 64,959,735,464.37/330,607.06
  6. Step 6: Final answer
    x = 196,486.23

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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.