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Finding the Fourth Proportional to 198,273, 273,618.66 and 108,850.92

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Solution

The fourth proportional to 198,273, 273,618.66 and 108,850.92 is: 150,215.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,273 : 273,618.66 = 108,850.92 : x
  2. Step 2: Convert to fraction form
    198,273/273,618.66 = 108,850.92/x
  3. Step 3: Cross multiply
    198,273x = 273,618.66 × 108,850.92
  4. Step 4: Simplify right side
    198,273x = 29,783,642,870.17
  5. Step 5: Solve for x
    x = 29,783,642,870.17/198,273
  6. Step 6: Final answer
    x = 150,215.32

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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.