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Finding the Fourth Proportional to 342,825.75, 472,942.53 and 222,005.95

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Solution

The fourth proportional to 342,825.75, 472,942.53 and 222,005.95 is: 306,266.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,825.75 : 472,942.53 = 222,005.95 : x
  2. Step 2: Convert to fraction form
    342,825.75/472,942.53 = 222,005.95/x
  3. Step 3: Cross multiply
    342,825.75x = 472,942.53 × 222,005.95
  4. Step 4: Simplify right side
    342,825.75x = 104,996,054,485.70
  5. Step 5: Solve for x
    x = 104,996,054,485.70/342,825.75
  6. Step 6: Final answer
    x = 306,266.53

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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.