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Finding the Fourth Proportional to 198,356, 273,731.28 and 108,932

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Solution

The fourth proportional to 198,356, 273,731.28 and 108,932 is: 150,326.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,356 : 273,731.28 = 108,932 : x
  2. Step 2: Convert to fraction form
    198,356/273,731.28 = 108,932/x
  3. Step 3: Cross multiply
    198,356x = 273,731.28 × 108,932
  4. Step 4: Simplify right side
    198,356x = 29,818,095,792.96
  5. Step 5: Solve for x
    x = 29,818,095,792.96/198,356
  6. Step 6: Final answer
    x = 150,326.16

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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.