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Finding the Fourth Proportional to 271,406.70, 374,906.48 and 208,530.45

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Solution

The fourth proportional to 271,406.70, 374,906.48 and 208,530.45 is: 288,052.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,406.70 : 374,906.48 = 208,530.45 : x
  2. Step 2: Convert to fraction form
    271,406.70/374,906.48 = 208,530.45/x
  3. Step 3: Cross multiply
    271,406.70x = 374,906.48 × 208,530.45
  4. Step 4: Simplify right side
    271,406.70x = 78,179,415,939.66
  5. Step 5: Solve for x
    x = 78,179,415,939.66/271,406.70
  6. Step 6: Final answer
    x = 288,052.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.