Home / 259,021.41-387,814.69-132,388.95

Finding the Fourth Proportional to 259,021.41, 387,814.69 and 132,388.95

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Solution

The fourth proportional to 259,021.41, 387,814.69 and 132,388.95 is: 198,216.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,021.41 : 387,814.69 = 132,388.95 : x
  2. Step 2: Convert to fraction form
    259,021.41/387,814.69 = 132,388.95/x
  3. Step 3: Cross multiply
    259,021.41x = 387,814.69 × 132,388.95
  4. Step 4: Simplify right side
    259,021.41x = 51,342,379,603.68
  5. Step 5: Solve for x
    x = 51,342,379,603.68/259,021.41
  6. Step 6: Final answer
    x = 198,216.74

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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.