Finding the Fourth Proportional to 215,356.08, 320,824.12 and 205,640.68
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Solution
The fourth proportional to 215,356.08, 320,824.12 and 205,640.68 is: 306,350.73
Step by Step Solution
- Step 1: Write the proportion equation
215,356.08 : 320,824.12 = 205,640.68 : x - Step 2: Convert to fraction form
215,356.08/320,824.12 = 205,640.68/x - Step 3: Cross multiply
215,356.08x = 320,824.12 × 205,640.68 - Step 4: Simplify right side
215,356.08x = 65,974,490,711.30 - Step 5: Solve for x
x = 65,974,490,711.30/215,356.08 - Step 6: Final answer
x = 306,350.73
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.