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Finding the Fourth Proportional to 323,793.95, 485,648.40 and 99,176.90

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Solution

The fourth proportional to 323,793.95, 485,648.40 and 99,176.90 is: 148,752.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,793.95 : 485,648.40 = 99,176.90 : x
  2. Step 2: Convert to fraction form
    323,793.95/485,648.40 = 99,176.90/x
  3. Step 3: Cross multiply
    323,793.95x = 485,648.40 × 99,176.90
  4. Step 4: Simplify right side
    323,793.95x = 48,165,102,801.96
  5. Step 5: Solve for x
    x = 48,165,102,801.96/323,793.95
  6. Step 6: Final answer
    x = 148,752.32

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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.