Home / 268,343.33-402,321.60-135,317.43

Finding the Fourth Proportional to 268,343.33, 402,321.60 and 135,317.43

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Solution

The fourth proportional to 268,343.33, 402,321.60 and 135,317.43 is: 202,878.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,343.33 : 402,321.60 = 135,317.43 : x
  2. Step 2: Convert to fraction form
    268,343.33/402,321.60 = 135,317.43/x
  3. Step 3: Cross multiply
    268,343.33x = 402,321.60 × 135,317.43
  4. Step 4: Simplify right side
    268,343.33x = 54,441,124,945.49
  5. Step 5: Solve for x
    x = 54,441,124,945.49/268,343.33
  6. Step 6: Final answer
    x = 202,878.63

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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.