Home / 258,733.44-388,157.40-90,246.96

Finding the Fourth Proportional to 258,733.44, 388,157.40 and 90,246.96

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Solution

The fourth proportional to 258,733.44, 388,157.40 and 90,246.96 is: 135,390.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,733.44 : 388,157.40 = 90,246.96 : x
  2. Step 2: Convert to fraction form
    258,733.44/388,157.40 = 90,246.96/x
  3. Step 3: Cross multiply
    258,733.44x = 388,157.40 × 90,246.96
  4. Step 4: Simplify right side
    258,733.44x = 35,030,025,351.50
  5. Step 5: Solve for x
    x = 35,030,025,351.50/258,733.44
  6. Step 6: Final answer
    x = 135,390.41

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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.