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Finding the Fourth Proportional to 183,093, 274,641.18 and 72,285

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Solution

The fourth proportional to 183,093, 274,641.18 and 72,285 is: 108,428.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,093 : 274,641.18 = 72,285 : x
  2. Step 2: Convert to fraction form
    183,093/274,641.18 = 72,285/x
  3. Step 3: Cross multiply
    183,093x = 274,641.18 × 72,285
  4. Step 4: Simplify right side
    183,093x = 19,852,437,696.30
  5. Step 5: Solve for x
    x = 19,852,437,696.30/183,093
  6. Step 6: Final answer
    x = 108,428.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.