Home / 231,219.54-346,857.07-81,428.85

Finding the Fourth Proportional to 231,219.54, 346,857.07 and 81,428.85

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Solution

The fourth proportional to 231,219.54, 346,857.07 and 81,428.85 is: 122,153.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,219.54 : 346,857.07 = 81,428.85 : x
  2. Step 2: Convert to fraction form
    231,219.54/346,857.07 = 81,428.85/x
  3. Step 3: Cross multiply
    231,219.54x = 346,857.07 × 81,428.85
  4. Step 4: Simplify right side
    231,219.54x = 28,244,172,324.47
  5. Step 5: Solve for x
    x = 28,244,172,324.47/231,219.54
  6. Step 6: Final answer
    x = 122,153.05

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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.