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Finding the Fourth Proportional to 321,760.56, 444,029.62 and 178,520.26

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Solution

The fourth proportional to 321,760.56, 444,029.62 and 178,520.26 is: 246,357.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,760.56 : 444,029.62 = 178,520.26 : x
  2. Step 2: Convert to fraction form
    321,760.56/444,029.62 = 178,520.26/x
  3. Step 3: Cross multiply
    321,760.56x = 444,029.62 × 178,520.26
  4. Step 4: Simplify right side
    321,760.56x = 79,268,283,210.10
  5. Step 5: Solve for x
    x = 79,268,283,210.10/321,760.56
  6. Step 6: Final answer
    x = 246,357.98

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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.