Home / 304,942.32-421,025.79-190,395.36

Finding the Fourth Proportional to 304,942.32, 421,025.79 and 190,395.36

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Solution

The fourth proportional to 304,942.32, 421,025.79 and 190,395.36 is: 262,873.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,942.32 : 421,025.79 = 190,395.36 : x
  2. Step 2: Convert to fraction form
    304,942.32/421,025.79 = 190,395.36/x
  3. Step 3: Cross multiply
    304,942.32x = 421,025.79 × 190,395.36
  4. Step 4: Simplify right side
    304,942.32x = 80,161,356,856.33
  5. Step 5: Solve for x
    x = 80,161,356,856.33/304,942.32
  6. Step 6: Final answer
    x = 262,873.83

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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.