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Finding the Fourth Proportional to 208,091.60, 311,676.60 and 171,227.60

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Solution

The fourth proportional to 208,091.60, 311,676.60 and 171,227.60 is: 256,462.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,091.60 : 311,676.60 = 171,227.60 : x
  2. Step 2: Convert to fraction form
    208,091.60/311,676.60 = 171,227.60/x
  3. Step 3: Cross multiply
    208,091.60x = 311,676.60 × 171,227.60
  4. Step 4: Simplify right side
    208,091.60x = 53,367,636,194.16
  5. Step 5: Solve for x
    x = 53,367,636,194.16/208,091.60
  6. Step 6: Final answer
    x = 256,462.23

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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.