Finding the Fourth Proportional to 407.19, 561.99 and 324.95
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Solution
The fourth proportional to 407.19, 561.99 and 324.95 is: 448.48
Step by Step Solution
- Step 1: Write the proportion equation
407.19 : 561.99 = 324.95 : x - Step 2: Convert to fraction form
407.19/561.99 = 324.95/x - Step 3: Cross multiply
407.19x = 561.99 × 324.95 - Step 4: Simplify right side
407.19x = 182,615.84 - Step 5: Solve for x
x = 182,615.84/407.19 - Step 6: Final answer
x = 448.48
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.