Finding the Fourth Proportional to 205,916.14, 309,073.94 and 99,375.08
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Solution
The fourth proportional to 205,916.14, 309,073.94 and 99,375.08 is: 149,159.01
Step by Step Solution
- Step 1: Write the proportion equation
205,916.14 : 309,073.94 = 99,375.08 : x - Step 2: Convert to fraction form
205,916.14/309,073.94 = 99,375.08/x - Step 3: Cross multiply
205,916.14x = 309,073.94 × 99,375.08 - Step 4: Simplify right side
205,916.14x = 30,714,247,016.54 - Step 5: Solve for x
x = 30,714,247,016.54/205,916.14 - Step 6: Final answer
x = 149,159.01
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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.