Finding the Fourth Proportional to 253,610.26, 349,979.64 and 137,323.18
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Solution
The fourth proportional to 253,610.26, 349,979.64 and 137,323.18 is: 189,504.62
Step by Step Solution
- Step 1: Write the proportion equation
253,610.26 : 349,979.64 = 137,323.18 : x - Step 2: Convert to fraction form
253,610.26/349,979.64 = 137,323.18/x - Step 3: Cross multiply
253,610.26x = 349,979.64 × 137,323.18 - Step 4: Simplify right side
253,610.26x = 48,060,317,100.06 - Step 5: Solve for x
x = 48,060,317,100.06/253,610.26 - Step 6: Final answer
x = 189,504.62
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.