Finding the Fourth Proportional to 196.98, 296.62 and 145.98
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Solution
The fourth proportional to 196.98, 296.62 and 145.98 is: 219.82
Step by Step Solution
- Step 1: Write the proportion equation
196.98 : 296.62 = 145.98 : x - Step 2: Convert to fraction form
196.98/296.62 = 145.98/x - Step 3: Cross multiply
196.98x = 296.62 × 145.98 - Step 4: Simplify right side
196.98x = 43,299.86 - Step 5: Solve for x
x = 43,299.86/196.98 - Step 6: Final answer
x = 219.82
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.