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Finding the Fourth Proportional to 234,768.72, 323,873.22 and 139,240.56

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Solution

The fourth proportional to 234,768.72, 323,873.22 and 139,240.56 is: 192,088.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,768.72 : 323,873.22 = 139,240.56 : x
  2. Step 2: Convert to fraction form
    234,768.72/323,873.22 = 139,240.56/x
  3. Step 3: Cross multiply
    234,768.72x = 323,873.22 × 139,240.56
  4. Step 4: Simplify right side
    234,768.72x = 45,096,288,521.80
  5. Step 5: Solve for x
    x = 45,096,288,521.80/234,768.72
  6. Step 6: Final answer
    x = 192,088.15

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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.