Home / 258,515.70-356,751.64-145,339.26

Finding the Fourth Proportional to 258,515.70, 356,751.64 and 145,339.26

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Solution

The fourth proportional to 258,515.70, 356,751.64 and 145,339.26 is: 200,568.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,515.70 : 356,751.64 = 145,339.26 : x
  2. Step 2: Convert to fraction form
    258,515.70/356,751.64 = 145,339.26/x
  3. Step 3: Cross multiply
    258,515.70x = 356,751.64 × 145,339.26
  4. Step 4: Simplify right side
    258,515.70x = 51,850,019,361.39
  5. Step 5: Solve for x
    x = 51,850,019,361.39/258,515.70
  6. Step 6: Final answer
    x = 200,568.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.