Home / 268,769.90-403,404.30-135,743.57

Finding the Fourth Proportional to 268,769.90, 403,404.30 and 135,743.57

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Solution

The fourth proportional to 268,769.90, 403,404.30 and 135,743.57 is: 203,741.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,769.90 : 403,404.30 = 135,743.57 : x
  2. Step 2: Convert to fraction form
    268,769.90/403,404.30 = 135,743.57/x
  3. Step 3: Cross multiply
    268,769.90x = 403,404.30 × 135,743.57
  4. Step 4: Simplify right side
    268,769.90x = 54,759,539,835.35
  5. Step 5: Solve for x
    x = 54,759,539,835.35/268,769.90
  6. Step 6: Final answer
    x = 203,741.34

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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.