Finding the Fourth Proportional to 98.60, 147.99 and 98.19
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Solution
The fourth proportional to 98.60, 147.99 and 98.19 is: 147.37
Step by Step Solution
- Step 1: Write the proportion equation
98.60 : 147.99 = 98.19 : x - Step 2: Convert to fraction form
98.60/147.99 = 98.19/x - Step 3: Cross multiply
98.60x = 147.99 × 98.19 - Step 4: Simplify right side
98.60x = 14,531.14 - Step 5: Solve for x
x = 14,531.14/98.60 - Step 6: Final answer
x = 147.37
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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.