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Finding the Fourth Proportional to 322,139.44, 444,558.45 and 178,912.90

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Solution

The fourth proportional to 322,139.44, 444,558.45 and 178,912.90 is: 246,903.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,139.44 : 444,558.45 = 178,912.90 : x
  2. Step 2: Convert to fraction form
    322,139.44/444,558.45 = 178,912.90/x
  3. Step 3: Cross multiply
    322,139.44x = 444,558.45 × 178,912.90
  4. Step 4: Simplify right side
    322,139.44x = 79,537,241,509.01
  5. Step 5: Solve for x
    x = 79,537,241,509.01/322,139.44
  6. Step 6: Final answer
    x = 246,903.15

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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.