Finding the Fourth Proportional to 153.44, 230 and 84.99
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Solution
The fourth proportional to 153.44, 230 and 84.99 is: 127.40
Step by Step Solution
- Step 1: Write the proportion equation
153.44 : 230 = 84.99 : x - Step 2: Convert to fraction form
153.44/230 = 84.99/x - Step 3: Cross multiply
153.44x = 230 × 84.99 - Step 4: Simplify right side
153.44x = 19,547.70 - Step 5: Solve for x
x = 19,547.70/153.44 - Step 6: Final answer
x = 127.40
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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.