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Finding the Fourth Proportional to 273,929.78, 378,016.06 and 153,072.06

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Solution

The fourth proportional to 273,929.78, 378,016.06 and 153,072.06 is: 211,235.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,929.78 : 378,016.06 = 153,072.06 : x
  2. Step 2: Convert to fraction form
    273,929.78/378,016.06 = 153,072.06/x
  3. Step 3: Cross multiply
    273,929.78x = 378,016.06 × 153,072.06
  4. Step 4: Simplify right side
    273,929.78x = 57,863,696,251.92
  5. Step 5: Solve for x
    x = 57,863,696,251.92/273,929.78
  6. Step 6: Final answer
    x = 211,235.51

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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.