Finding the Fourth Proportional to 317.63, 438.35 and 233.99
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Solution
The fourth proportional to 317.63, 438.35 and 233.99 is: 322.92
Step by Step Solution
- Step 1: Write the proportion equation
317.63 : 438.35 = 233.99 : x - Step 2: Convert to fraction form
317.63/438.35 = 233.99/x - Step 3: Cross multiply
317.63x = 438.35 × 233.99 - Step 4: Simplify right side
317.63x = 102,567.32 - Step 5: Solve for x
x = 102,567.32/317.63 - Step 6: Final answer
x = 322.92
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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.