Finding the Fourth Proportional to 312,081.36, 430,672.08 and 168,841.44
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Solution
The fourth proportional to 312,081.36, 430,672.08 and 168,841.44 is: 233,001.08
Step by Step Solution
- Step 1: Write the proportion equation
312,081.36 : 430,672.08 = 168,841.44 : x - Step 2: Convert to fraction form
312,081.36/430,672.08 = 168,841.44/x - Step 3: Cross multiply
312,081.36x = 430,672.08 × 168,841.44 - Step 4: Simplify right side
312,081.36x = 72,715,294,155.00 - Step 5: Solve for x
x = 72,715,294,155.00/312,081.36 - Step 6: Final answer
x = 233,001.08
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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.