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Finding the Fourth Proportional to 330,872, 495,518.25 and 190,335.38

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Solution

The fourth proportional to 330,872, 495,518.25 and 190,335.38 is: 285,048.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,872 : 495,518.25 = 190,335.38 : x
  2. Step 2: Convert to fraction form
    330,872/495,518.25 = 190,335.38/x
  3. Step 3: Cross multiply
    330,872x = 495,518.25 × 190,335.38
  4. Step 4: Simplify right side
    330,872x = 94,314,654,410.69
  5. Step 5: Solve for x
    x = 94,314,654,410.69/330,872
  6. Step 6: Final answer
    x = 285,048.76

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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.