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Finding the Fourth Proportional to 305,076.94, 421,021.66 and 175,967.38

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Solution

The fourth proportional to 305,076.94, 421,021.66 and 175,967.38 is: 242,843.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,076.94 : 421,021.66 = 175,967.38 : x
  2. Step 2: Convert to fraction form
    305,076.94/421,021.66 = 175,967.38/x
  3. Step 3: Cross multiply
    305,076.94x = 421,021.66 × 175,967.38
  4. Step 4: Simplify right side
    305,076.94x = 74,086,078,433.45
  5. Step 5: Solve for x
    x = 74,086,078,433.45/305,076.94
  6. Step 6: Final answer
    x = 242,843.91

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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.