Finding the Fourth Proportional to 312,085.36, 430,677.60 and 168,845.44
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Solution
The fourth proportional to 312,085.36, 430,677.60 and 168,845.44 is: 233,006.60
Step by Step Solution
- Step 1: Write the proportion equation
312,085.36 : 430,677.60 = 168,845.44 : x - Step 2: Convert to fraction form
312,085.36/430,677.60 = 168,845.44/x - Step 3: Cross multiply
312,085.36x = 430,677.60 × 168,845.44 - Step 4: Simplify right side
312,085.36x = 72,717,948,870.14 - Step 5: Solve for x
x = 72,717,948,870.14/312,085.36 - Step 6: Final answer
x = 233,006.60
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1.5x scale
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.