Home / 271,934.82-407,860.05-138,913.38

Finding the Fourth Proportional to 271,934.82, 407,860.05 and 138,913.38

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Solution

The fourth proportional to 271,934.82, 407,860.05 and 138,913.38 is: 208,348.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,934.82 : 407,860.05 = 138,913.38 : x
  2. Step 2: Convert to fraction form
    271,934.82/407,860.05 = 138,913.38/x
  3. Step 3: Cross multiply
    271,934.82x = 407,860.05 × 138,913.38
  4. Step 4: Simplify right side
    271,934.82x = 56,657,218,112.47
  5. Step 5: Solve for x
    x = 56,657,218,112.47/271,934.82
  6. Step 6: Final answer
    x = 208,348.52

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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.