Finding the Fourth Proportional to 197.72, 296.99 and 125.63
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Solution
The fourth proportional to 197.72, 296.99 and 125.63 is: 188.70
Step by Step Solution
- Step 1: Write the proportion equation
197.72 : 296.99 = 125.63 : x - Step 2: Convert to fraction form
197.72/296.99 = 125.63/x - Step 3: Cross multiply
197.72x = 296.99 × 125.63 - Step 4: Simplify right side
197.72x = 37,308.74 - Step 5: Solve for x
x = 37,308.74/197.72 - Step 6: Final answer
x = 188.70
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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.