Finding the Fourth Proportional to 207,887.17, 312,006.01 and 81,616.09
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Solution
The fourth proportional to 207,887.17, 312,006.01 and 81,616.09 is: 122,492.94
Step by Step Solution
- Step 1: Write the proportion equation
207,887.17 : 312,006.01 = 81,616.09 : x - Step 2: Convert to fraction form
207,887.17/312,006.01 = 81,616.09/x - Step 3: Cross multiply
207,887.17x = 312,006.01 × 81,616.09 - Step 4: Simplify right side
207,887.17x = 25,464,710,592.70 - Step 5: Solve for x
x = 25,464,710,592.70/207,887.17 - Step 6: Final answer
x = 122,492.94
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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.