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Finding the Fourth Proportional to 260,080.44, 389,866.80 and 126,955.32

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Solution

The fourth proportional to 260,080.44, 389,866.80 and 126,955.32 is: 190,309.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,080.44 : 389,866.80 = 126,955.32 : x
  2. Step 2: Convert to fraction form
    260,080.44/389,866.80 = 126,955.32/x
  3. Step 3: Cross multiply
    260,080.44x = 389,866.80 × 126,955.32
  4. Step 4: Simplify right side
    260,080.44x = 49,495,664,351.38
  5. Step 5: Solve for x
    x = 49,495,664,351.38/260,080.44
  6. Step 6: Final answer
    x = 190,309.06

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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.