Home / 271,750.05-405,795.09-221,928.97

Finding the Fourth Proportional to 271,750.05, 405,795.09 and 221,928.97

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Solution

The fourth proportional to 271,750.05, 405,795.09 and 221,928.97 is: 331,398.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,750.05 : 405,795.09 = 221,928.97 : x
  2. Step 2: Convert to fraction form
    271,750.05/405,795.09 = 221,928.97/x
  3. Step 3: Cross multiply
    271,750.05x = 405,795.09 × 221,928.97
  4. Step 4: Simplify right side
    271,750.05x = 90,057,686,354.76
  5. Step 5: Solve for x
    x = 90,057,686,354.76/271,750.05
  6. Step 6: Final answer
    x = 331,398.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.