Finding the Fourth Proportional to 98.62, 147.93 and 52.99
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Solution
The fourth proportional to 98.62, 147.93 and 52.99 is: 79.48
Step by Step Solution
- Step 1: Write the proportion equation
98.62 : 147.93 = 52.99 : x - Step 2: Convert to fraction form
98.62/147.93 = 52.99/x - Step 3: Cross multiply
98.62x = 147.93 × 52.99 - Step 4: Simplify right side
98.62x = 7,838.24 - Step 5: Solve for x
x = 7,838.24/98.62 - 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.