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Finding the Fourth Proportional to 323,800.80, 485,715.60 and 110,565.60

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Solution

The fourth proportional to 323,800.80, 485,715.60 and 110,565.60 is: 165,853.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,800.80 : 485,715.60 = 110,565.60 : x
  2. Step 2: Convert to fraction form
    323,800.80/485,715.60 = 110,565.60/x
  3. Step 3: Cross multiply
    323,800.80x = 485,715.60 × 110,565.60
  4. Step 4: Simplify right side
    323,800.80x = 53,703,436,743.36
  5. Step 5: Solve for x
    x = 53,703,436,743.36/323,800.80
  6. Step 6: Final answer
    x = 165,853.32

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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.