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Finding the Fourth Proportional to 259,115.04, 388,879.92 and 134,491.68

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Solution

The fourth proportional to 259,115.04, 388,879.92 and 134,491.68 is: 201,845.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,115.04 : 388,879.92 = 134,491.68 : x
  2. Step 2: Convert to fraction form
    259,115.04/388,879.92 = 134,491.68/x
  3. Step 3: Cross multiply
    259,115.04x = 388,879.92 × 134,491.68
  4. Step 4: Simplify right side
    259,115.04x = 52,301,113,759.07
  5. Step 5: Solve for x
    x = 52,301,113,759.07/259,115.04
  6. Step 6: Final answer
    x = 201,845.15

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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.