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Finding the Fourth Proportional to 323,799.10, 485,698.65 and 298,915.90

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Solution

The fourth proportional to 323,799.10, 485,698.65 and 298,915.90 is: 448,373.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,799.10 : 485,698.65 = 298,915.90 : x
  2. Step 2: Convert to fraction form
    323,799.10/485,698.65 = 298,915.90/x
  3. Step 3: Cross multiply
    323,799.10x = 485,698.65 × 298,915.90
  4. Step 4: Simplify right side
    323,799.10x = 145,183,049,093.54
  5. Step 5: Solve for x
    x = 145,183,049,093.54/323,799.10
  6. Step 6: Final answer
    x = 448,373.85

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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.