Home / 321,212.07-443,254.14-177,963.57

Finding the Fourth Proportional to 321,212.07, 443,254.14 and 177,963.57

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Solution

The fourth proportional to 321,212.07, 443,254.14 and 177,963.57 is: 245,579.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,212.07 : 443,254.14 = 177,963.57 : x
  2. Step 2: Convert to fraction form
    321,212.07/443,254.14 = 177,963.57/x
  3. Step 3: Cross multiply
    321,212.07x = 443,254.14 × 177,963.57
  4. Step 4: Simplify right side
    321,212.07x = 78,883,089,171.68
  5. Step 5: Solve for x
    x = 78,883,089,171.68/321,212.07
  6. Step 6: Final answer
    x = 245,579.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.