Home / 320,878.26-481,244.49-143,289

Finding the Fourth Proportional to 320,878.26, 481,244.49 and 143,289

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Solution

The fourth proportional to 320,878.26, 481,244.49 and 143,289 is: 214,900.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,878.26 : 481,244.49 = 143,289 : x
  2. Step 2: Convert to fraction form
    320,878.26/481,244.49 = 143,289/x
  3. Step 3: Cross multiply
    320,878.26x = 481,244.49 × 143,289
  4. Step 4: Simplify right side
    320,878.26x = 68,957,041,727.61
  5. Step 5: Solve for x
    x = 68,957,041,727.61/320,878.26
  6. Step 6: Final answer
    x = 214,900.95

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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.