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Finding the Fourth Proportional to 330,245.66, 495,212.32 and 127,936.52

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Solution

The fourth proportional to 330,245.66, 495,212.32 and 127,936.52 is: 191,844.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,245.66 : 495,212.32 = 127,936.52 : x
  2. Step 2: Convert to fraction form
    330,245.66/495,212.32 = 127,936.52/x
  3. Step 3: Cross multiply
    330,245.66x = 495,212.32 × 127,936.52
  4. Step 4: Simplify right side
    330,245.66x = 63,355,740,881.93
  5. Step 5: Solve for x
    x = 63,355,740,881.93/330,245.66
  6. Step 6: Final answer
    x = 191,844.28

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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.