Finding the Fourth Proportional to 201,207.70, 301,811.55 and 68,092.30
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Solution
The fourth proportional to 201,207.70, 301,811.55 and 68,092.30 is: 102,138.45
Step by Step Solution
- Step 1: Write the proportion equation
201,207.70 : 301,811.55 = 68,092.30 : x - Step 2: Convert to fraction form
201,207.70/301,811.55 = 68,092.30/x - Step 3: Cross multiply
201,207.70x = 301,811.55 × 68,092.30 - Step 4: Simplify right side
201,207.70x = 20,551,042,606.07 - Step 5: Solve for x
x = 20,551,042,606.07/201,207.70 - Step 6: Final answer
x = 102,138.45
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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.