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Finding the Fourth Proportional to 321,919.04, 444,228 and 178,670.72

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Solution

The fourth proportional to 321,919.04, 444,228 and 178,670.72 is: 246,554.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,919.04 : 444,228 = 178,670.72 : x
  2. Step 2: Convert to fraction form
    321,919.04/444,228 = 178,670.72/x
  3. Step 3: Cross multiply
    321,919.04x = 444,228 × 178,670.72
  4. Step 4: Simplify right side
    321,919.04x = 79,370,536,604.16
  5. Step 5: Solve for x
    x = 79,370,536,604.16/321,919.04
  6. Step 6: Final answer
    x = 246,554.34

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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.