Finding the Fourth Proportional to 228,207.26, 342,366.98 and 78,449.60
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Solution
The fourth proportional to 228,207.26, 342,366.98 and 78,449.60 is: 117,693.68
Step by Step Solution
- Step 1: Write the proportion equation
228,207.26 : 342,366.98 = 78,449.60 : x - Step 2: Convert to fraction form
228,207.26/342,366.98 = 78,449.60/x - Step 3: Cross multiply
228,207.26x = 342,366.98 × 78,449.60 - Step 4: Simplify right side
228,207.26x = 26,858,550,530.13 - Step 5: Solve for x
x = 26,858,550,530.13/228,207.26 - Step 6: Final answer
x = 117,693.68
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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.