Finding the Fourth Proportional to 197.24, 295.65 and 156.74
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Solution
The fourth proportional to 197.24, 295.65 and 156.74 is: 234.94
Step by Step Solution
- Step 1: Write the proportion equation
197.24 : 295.65 = 156.74 : x - Step 2: Convert to fraction form
197.24/295.65 = 156.74/x - Step 3: Cross multiply
197.24x = 295.65 × 156.74 - Step 4: Simplify right side
197.24x = 46,338.70 - Step 5: Solve for x
x = 46,338.70/197.24 - Step 6: Final answer
x = 234.94
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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.