Finding the Fourth Proportional to 230.68, 345.88 and 114.99
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Solution
The fourth proportional to 230.68, 345.88 and 114.99 is: 172.42
Step by Step Solution
- Step 1: Write the proportion equation
230.68 : 345.88 = 114.99 : x - Step 2: Convert to fraction form
230.68/345.88 = 114.99/x - Step 3: Cross multiply
230.68x = 345.88 × 114.99 - Step 4: Simplify right side
230.68x = 39,772.74 - Step 5: Solve for x
x = 39,772.74/230.68 - Step 6: Final answer
x = 172.42
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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.