Finding the Fourth Proportional to 405.99, 608.99 and 223.28
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Solution
The fourth proportional to 405.99, 608.99 and 223.28 is: 334.92
Step by Step Solution
- Step 1: Write the proportion equation
405.99 : 608.99 = 223.28 : x - Step 2: Convert to fraction form
405.99/608.99 = 223.28/x - Step 3: Cross multiply
405.99x = 608.99 × 223.28 - Step 4: Simplify right side
405.99x = 135,975.69 - Step 5: Solve for x
x = 135,975.69/405.99 - Step 6: Final answer
x = 334.92
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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.