Home / 321,095.81-443,112.26-177,865.13

Finding the Fourth Proportional to 321,095.81, 443,112.26 and 177,865.13

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Solution

The fourth proportional to 321,095.81, 443,112.26 and 177,865.13 is: 245,453.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,095.81 : 443,112.26 = 177,865.13 : x
  2. Step 2: Convert to fraction form
    321,095.81/443,112.26 = 177,865.13/x
  3. Step 3: Cross multiply
    321,095.81x = 443,112.26 × 177,865.13
  4. Step 4: Simplify right side
    321,095.81x = 78,814,219,947.95
  5. Step 5: Solve for x
    x = 78,814,219,947.95/321,095.81
  6. Step 6: Final answer
    x = 245,453.90

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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.