Finding the Fourth Proportional to 197.28, 295.90 and 52.99
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Solution
The fourth proportional to 197.28, 295.90 and 52.99 is: 79.48
Step by Step Solution
- Step 1: Write the proportion equation
197.28 : 295.90 = 52.99 : x - Step 2: Convert to fraction form
197.28/295.90 = 52.99/x - Step 3: Cross multiply
197.28x = 295.90 × 52.99 - Step 4: Simplify right side
197.28x = 15,679.74 - Step 5: Solve for x
x = 15,679.74/197.28 - Step 6: Final answer
x = 79.48
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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.