Finding the Fourth Proportional to 533.21, 734.97 and 322.99
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Solution
The fourth proportional to 533.21, 734.97 and 322.99 is: 445.21
Step by Step Solution
- Step 1: Write the proportion equation
533.21 : 734.97 = 322.99 : x - Step 2: Convert to fraction form
533.21/734.97 = 322.99/x - Step 3: Cross multiply
533.21x = 734.97 × 322.99 - Step 4: Simplify right side
533.21x = 237,387.66 - Step 5: Solve for x
x = 237,387.66/533.21 - Step 6: Final answer
x = 445.21
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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.