Finding the Fourth Proportional to 197,643.26, 296,478.75 and 79,314.68
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Solution
The fourth proportional to 197,643.26, 296,478.75 and 79,314.68 is: 118,977.58
Step by Step Solution
- Step 1: Write the proportion equation
197,643.26 : 296,478.75 = 79,314.68 : x - Step 2: Convert to fraction form
197,643.26/296,478.75 = 79,314.68/x - Step 3: Cross multiply
197,643.26x = 296,478.75 × 79,314.68 - Step 4: Simplify right side
197,643.26x = 23,515,117,183.05 - Step 5: Solve for x
x = 23,515,117,183.05/197,643.26 - Step 6: Final answer
x = 118,977.58
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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.