Finding the Fourth Proportional to 306.41, 459.62 and 89.99
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Solution
The fourth proportional to 306.41, 459.62 and 89.99 is: 134.99
Step by Step Solution
- Step 1: Write the proportion equation
306.41 : 459.62 = 89.99 : x - Step 2: Convert to fraction form
306.41/459.62 = 89.99/x - Step 3: Cross multiply
306.41x = 459.62 × 89.99 - Step 4: Simplify right side
306.41x = 41,360.75 - Step 5: Solve for x
x = 41,360.75/306.41 - Step 6: Final answer
x = 134.99
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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.