Home / 275,405.90-412,570.29-190,003.55

Finding the Fourth Proportional to 275,405.90, 412,570.29 and 190,003.55

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Solution

The fourth proportional to 275,405.90, 412,570.29 and 190,003.55 is: 284,633.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,405.90 : 412,570.29 = 190,003.55 : x
  2. Step 2: Convert to fraction form
    275,405.90/412,570.29 = 190,003.55/x
  3. Step 3: Cross multiply
    275,405.90x = 412,570.29 × 190,003.55
  4. Step 4: Simplify right side
    275,405.90x = 78,389,819,724.53
  5. Step 5: Solve for x
    x = 78,389,819,724.53/275,405.90
  6. Step 6: Final answer
    x = 284,633.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.