Home / 263,771.34-395,705.70-86,287.74

Finding the Fourth Proportional to 263,771.34, 395,705.70 and 86,287.74

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Solution

The fourth proportional to 263,771.34, 395,705.70 and 86,287.74 is: 129,447.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,771.34 : 395,705.70 = 86,287.74 : x
  2. Step 2: Convert to fraction form
    263,771.34/395,705.70 = 86,287.74/x
  3. Step 3: Cross multiply
    263,771.34x = 395,705.70 × 86,287.74
  4. Step 4: Simplify right side
    263,771.34x = 34,144,550,558.12
  5. Step 5: Solve for x
    x = 34,144,550,558.12/263,771.34
  6. Step 6: Final answer
    x = 129,447.54

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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.