Finding the Fourth Proportional to 407.93, 612.17 and 299.99
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Solution
The fourth proportional to 407.93, 612.17 and 299.99 is: 450.19
Step by Step Solution
- Step 1: Write the proportion equation
407.93 : 612.17 = 299.99 : x - Step 2: Convert to fraction form
407.93/612.17 = 299.99/x - Step 3: Cross multiply
407.93x = 612.17 × 299.99 - Step 4: Simplify right side
407.93x = 183,642.57 - Step 5: Solve for x
x = 183,642.57/407.93 - Step 6: Final answer
x = 450.19
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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.