Home / 268,769.78-370,917.60-154,067.51

Finding the Fourth Proportional to 268,769.78, 370,917.60 and 154,067.51

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Solution

The fourth proportional to 268,769.78, 370,917.60 and 154,067.51 is: 212,621.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,769.78 : 370,917.60 = 154,067.51 : x
  2. Step 2: Convert to fraction form
    268,769.78/370,917.60 = 154,067.51/x
  3. Step 3: Cross multiply
    268,769.78x = 370,917.60 × 154,067.51
  4. Step 4: Simplify right side
    268,769.78x = 57,146,351,047.18
  5. Step 5: Solve for x
    x = 57,146,351,047.18/268,769.78
  6. Step 6: Final answer
    x = 212,621.94

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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.