Finding the Fourth Proportional to 263.50, 394.99 and 98.95
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Solution
The fourth proportional to 263.50, 394.99 and 98.95 is: 148.32
Step by Step Solution
- Step 1: Write the proportion equation
263.50 : 394.99 = 98.95 : x - Step 2: Convert to fraction form
263.50/394.99 = 98.95/x - Step 3: Cross multiply
263.50x = 394.99 × 98.95 - Step 4: Simplify right side
263.50x = 39,082.79 - Step 5: Solve for x
x = 39,082.79/263.50 - Step 6: Final answer
x = 148.32
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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.