Finding the Fourth Proportional to 188,343.99, 259,916.49 and 103,461.05
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Solution
The fourth proportional to 188,343.99, 259,916.49 and 103,461.05 is: 142,777.22
Step by Step Solution
- Step 1: Write the proportion equation
188,343.99 : 259,916.49 = 103,461.05 : x - Step 2: Convert to fraction form
188,343.99/259,916.49 = 103,461.05/x - Step 3: Cross multiply
188,343.99x = 259,916.49 × 103,461.05 - Step 4: Simplify right side
188,343.99x = 26,891,231,668.13 - Step 5: Solve for x
x = 26,891,231,668.13/188,343.99 - Step 6: Final answer
x = 142,777.22
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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.