Finding the Fourth Proportional to 153.36, 230.14 and 84.93
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Solution
The fourth proportional to 153.36, 230.14 and 84.93 is: 127.45
Step by Step Solution
- Step 1: Write the proportion equation
153.36 : 230.14 = 84.93 : x - Step 2: Convert to fraction form
153.36/230.14 = 84.93/x - Step 3: Cross multiply
153.36x = 230.14 × 84.93 - Step 4: Simplify right side
153.36x = 19,545.79 - Step 5: Solve for x
x = 19,545.79/153.36 - Step 6: Final answer
x = 127.45
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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.