Finding the Fourth Proportional to 201,989.80, 302,984.70 and 68,825.80
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Solution
The fourth proportional to 201,989.80, 302,984.70 and 68,825.80 is: 103,238.70
Step by Step Solution
- Step 1: Write the proportion equation
201,989.80 : 302,984.70 = 68,825.80 : x - Step 2: Convert to fraction form
201,989.80/302,984.70 = 68,825.80/x - Step 3: Cross multiply
201,989.80x = 302,984.70 × 68,825.80 - Step 4: Simplify right side
201,989.80x = 20,853,164,365.26 - Step 5: Solve for x
x = 20,853,164,365.26/201,989.80 - Step 6: Final answer
x = 103,238.70
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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.