Home / 275,917.28-380,760.75-155,056.82

Finding the Fourth Proportional to 275,917.28, 380,760.75 and 155,056.82

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Solution

The fourth proportional to 275,917.28, 380,760.75 and 155,056.82 is: 213,975.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,917.28 : 380,760.75 = 155,056.82 : x
  2. Step 2: Convert to fraction form
    275,917.28/380,760.75 = 155,056.82/x
  3. Step 3: Cross multiply
    275,917.28x = 380,760.75 × 155,056.82
  4. Step 4: Simplify right side
    275,917.28x = 59,039,549,172.01
  5. Step 5: Solve for x
    x = 59,039,549,172.01/275,917.28
  6. Step 6: Final answer
    x = 213,975.54

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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.