Home / 263,973.90-395,655.86-121,520.49

Finding the Fourth Proportional to 263,973.90, 395,655.86 and 121,520.49

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Solution

The fourth proportional to 263,973.90, 395,655.86 and 121,520.49 is: 182,140.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,973.90 : 395,655.86 = 121,520.49 : x
  2. Step 2: Convert to fraction form
    263,973.90/395,655.86 = 121,520.49/x
  3. Step 3: Cross multiply
    263,973.90x = 395,655.86 × 121,520.49
  4. Step 4: Simplify right side
    263,973.90x = 48,080,293,370.97
  5. Step 5: Solve for x
    x = 48,080,293,370.97/263,973.90
  6. Step 6: Final answer
    x = 182,140.33

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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.