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Finding the Fourth Proportional to 338,622, 467,298.42 and 187,719

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Solution

The fourth proportional to 338,622, 467,298.42 and 187,719 is: 259,052.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,622 : 467,298.42 = 187,719 : x
  2. Step 2: Convert to fraction form
    338,622/467,298.42 = 187,719/x
  3. Step 3: Cross multiply
    338,622x = 467,298.42 × 187,719
  4. Step 4: Simplify right side
    338,622x = 87,720,792,103.98
  5. Step 5: Solve for x
    x = 87,720,792,103.98/338,622
  6. Step 6: Final answer
    x = 259,052.25

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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.