Finding the Fourth Proportional to 197.99, 296.99 and 129.95
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Solution
The fourth proportional to 197.99, 296.99 and 129.95 is: 194.92
Step by Step Solution
- Step 1: Write the proportion equation
197.99 : 296.99 = 129.95 : x - Step 2: Convert to fraction form
197.99/296.99 = 129.95/x - Step 3: Cross multiply
197.99x = 296.99 × 129.95 - Step 4: Simplify right side
197.99x = 38,592.04 - Step 5: Solve for x
x = 38,592.04/197.99 - Step 6: Final answer
x = 194.92
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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.