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Finding the Fourth Proportional to 330,183.54, 495,282.81 and 187,005.78

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Solution

The fourth proportional to 330,183.54, 495,282.81 and 187,005.78 is: 280,512.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,183.54 : 495,282.81 = 187,005.78 : x
  2. Step 2: Convert to fraction form
    330,183.54/495,282.81 = 187,005.78/x
  3. Step 3: Cross multiply
    330,183.54x = 495,282.81 × 187,005.78
  4. Step 4: Simplify right side
    330,183.54x = 92,620,748,204.64
  5. Step 5: Solve for x
    x = 92,620,748,204.64/330,183.54
  6. Step 6: Final answer
    x = 280,512.92

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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.