Finding the Fourth Proportional to 253,556.49, 349,906.67 and 138,833.05
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Solution
The fourth proportional to 253,556.49, 349,906.67 and 138,833.05 is: 191,588.90
Step by Step Solution
- Step 1: Write the proportion equation
253,556.49 : 349,906.67 = 138,833.05 : x - Step 2: Convert to fraction form
253,556.49/349,906.67 = 138,833.05/x - Step 3: Cross multiply
253,556.49x = 349,906.67 × 138,833.05 - Step 4: Simplify right side
253,556.49x = 48,578,609,819.21 - Step 5: Solve for x
x = 48,578,609,819.21/253,556.49 - Step 6: Final answer
x = 191,588.90
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.