Finding the Fourth Proportional to 186.74, 280.08 and 64.99
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Solution
The fourth proportional to 186.74, 280.08 and 64.99 is: 97.47
Step by Step Solution
- Step 1: Write the proportion equation
186.74 : 280.08 = 64.99 : x - Step 2: Convert to fraction form
186.74/280.08 = 64.99/x - Step 3: Cross multiply
186.74x = 280.08 × 64.99 - Step 4: Simplify right side
186.74x = 18,201.70 - Step 5: Solve for x
x = 18,201.70/186.74 - Step 6: Final answer
x = 97.47
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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.