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Finding the Fourth Proportional to 277,205.60, 415,516.80 and 108,660.80

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Solution

The fourth proportional to 277,205.60, 415,516.80 and 108,660.80 is: 162,876.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,205.60 : 415,516.80 = 108,660.80 : x
  2. Step 2: Convert to fraction form
    277,205.60/415,516.80 = 108,660.80/x
  3. Step 3: Cross multiply
    277,205.60x = 415,516.80 × 108,660.80
  4. Step 4: Simplify right side
    277,205.60x = 45,150,387,901.44
  5. Step 5: Solve for x
    x = 45,150,387,901.44/277,205.60
  6. Step 6: Final answer
    x = 162,876.90

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1.5x scale

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.