Home / 258,642.03-356,922.50-145,464.78

Finding the Fourth Proportional to 258,642.03, 356,922.50 and 145,464.78

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Solution

The fourth proportional to 258,642.03, 356,922.50 and 145,464.78 is: 200,739.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,642.03 : 356,922.50 = 145,464.78 : x
  2. Step 2: Convert to fraction form
    258,642.03/356,922.50 = 145,464.78/x
  3. Step 3: Cross multiply
    258,642.03x = 356,922.50 × 145,464.78
  4. Step 4: Simplify right side
    258,642.03x = 51,919,652,212.23
  5. Step 5: Solve for x
    x = 51,919,652,212.23/258,642.03
  6. Step 6: Final answer
    x = 200,739.42

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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.