Home / 321,012.24-442,998.21-177,769.20

Finding the Fourth Proportional to 321,012.24, 442,998.21 and 177,769.20

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Solution

The fourth proportional to 321,012.24, 442,998.21 and 177,769.20 is: 245,322.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,012.24 : 442,998.21 = 177,769.20 : x
  2. Step 2: Convert to fraction form
    321,012.24/442,998.21 = 177,769.20/x
  3. Step 3: Cross multiply
    321,012.24x = 442,998.21 × 177,769.20
  4. Step 4: Simplify right side
    321,012.24x = 78,751,437,393.13
  5. Step 5: Solve for x
    x = 78,751,437,393.13/321,012.24
  6. Step 6: Final answer
    x = 245,322.23

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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.