Finding the Fourth Proportional to 201,799.78, 301,952.26 and 126,318.49
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Solution
The fourth proportional to 201,799.78, 301,952.26 and 126,318.49 is: 189,009.89
Step by Step Solution
- Step 1: Write the proportion equation
201,799.78 : 301,952.26 = 126,318.49 : x - Step 2: Convert to fraction form
201,799.78/301,952.26 = 126,318.49/x - Step 3: Cross multiply
201,799.78x = 301,952.26 × 126,318.49 - Step 4: Simplify right side
201,799.78x = 38,142,153,535.29 - Step 5: Solve for x
x = 38,142,153,535.29/201,799.78 - Step 6: Final answer
x = 189,009.89
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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.