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Finding the Fourth Proportional to 321,995.40, 444,365.10 and 178,757.70

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Solution

The fourth proportional to 321,995.40, 444,365.10 and 178,757.70 is: 246,691.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,995.40 : 444,365.10 = 178,757.70 : x
  2. Step 2: Convert to fraction form
    321,995.40/444,365.10 = 178,757.70/x
  3. Step 3: Cross multiply
    321,995.40x = 444,365.10 × 178,757.70
  4. Step 4: Simplify right side
    321,995.40x = 79,433,683,236.27
  5. Step 5: Solve for x
    x = 79,433,683,236.27/321,995.40
  6. Step 6: Final answer
    x = 246,691.98

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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.