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Finding the Fourth Proportional to 329,885.20, 495,864.60 and 323,664.40

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Solution

The fourth proportional to 329,885.20, 495,864.60 and 323,664.40 is: 486,513.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,885.20 : 495,864.60 = 323,664.40 : x
  2. Step 2: Convert to fraction form
    329,885.20/495,864.60 = 323,664.40/x
  3. Step 3: Cross multiply
    329,885.20x = 495,864.60 × 323,664.40
  4. Step 4: Simplify right side
    329,885.20x = 160,493,718,240.24
  5. Step 5: Solve for x
    x = 160,493,718,240.24/329,885.20
  6. Step 6: Final answer
    x = 486,513.85

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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.