Finding the Fourth Proportional to 208,801.24, 312,991.62 and 120,028.12
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Solution
The fourth proportional to 208,801.24, 312,991.62 and 120,028.12 is: 179,921.32
Step by Step Solution
- Step 1: Write the proportion equation
208,801.24 : 312,991.62 = 120,028.12 : x - Step 2: Convert to fraction form
208,801.24/312,991.62 = 120,028.12/x - Step 3: Cross multiply
208,801.24x = 312,991.62 × 120,028.12 - Step 4: Simplify right side
208,801.24x = 37,567,795,724.35 - Step 5: Solve for x
x = 37,567,795,724.35/208,801.24 - Step 6: Final answer
x = 179,921.32
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1.5x scale
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.