Home / 247,128.23-341,109.46-143,786.75

Finding the Fourth Proportional to 247,128.23, 341,109.46 and 143,786.75

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Solution

The fourth proportional to 247,128.23, 341,109.46 and 143,786.75 is: 198,467.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,128.23 : 341,109.46 = 143,786.75 : x
  2. Step 2: Convert to fraction form
    247,128.23/341,109.46 = 143,786.75/x
  3. Step 3: Cross multiply
    247,128.23x = 341,109.46 × 143,786.75
  4. Step 4: Simplify right side
    247,128.23x = 49,047,019,121.84
  5. Step 5: Solve for x
    x = 49,047,019,121.84/247,128.23
  6. Step 6: Final answer
    x = 198,467.89

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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.