Finding the Fourth Proportional to 306.62, 459.95 and 123.99
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Solution
The fourth proportional to 306.62, 459.95 and 123.99 is: 185.99
Step by Step Solution
- Step 1: Write the proportion equation
306.62 : 459.95 = 123.99 : x - Step 2: Convert to fraction form
306.62/459.95 = 123.99/x - Step 3: Cross multiply
306.62x = 459.95 × 123.99 - Step 4: Simplify right side
306.62x = 57,029.20 - Step 5: Solve for x
x = 57,029.20/306.62 - Step 6: Final answer
x = 185.99
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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.