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Finding the Fourth Proportional to 208,165.77, 312,249.48 and 50,393.97

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Solution

The fourth proportional to 208,165.77, 312,249.48 and 50,393.97 is: 75,591.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,165.77 : 312,249.48 = 50,393.97 : x
  2. Step 2: Convert to fraction form
    208,165.77/312,249.48 = 50,393.97/x
  3. Step 3: Cross multiply
    208,165.77x = 312,249.48 × 50,393.97
  4. Step 4: Simplify right side
    208,165.77x = 15,735,490,927.64
  5. Step 5: Solve for x
    x = 15,735,490,927.64/208,165.77
  6. Step 6: Final answer
    x = 75,591.15

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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.