Home / 263,612.20-395,418.30-121,457.20

Finding the Fourth Proportional to 263,612.20, 395,418.30 and 121,457.20

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Solution

The fourth proportional to 263,612.20, 395,418.30 and 121,457.20 is: 182,185.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,612.20 : 395,418.30 = 121,457.20 : x
  2. Step 2: Convert to fraction form
    263,612.20/395,418.30 = 121,457.20/x
  3. Step 3: Cross multiply
    263,612.20x = 395,418.30 × 121,457.20
  4. Step 4: Simplify right side
    263,612.20x = 48,026,399,546.76
  5. Step 5: Solve for x
    x = 48,026,399,546.76/263,612.20
  6. Step 6: Final answer
    x = 182,185.80

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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.