Finding the Fourth Proportional to 320.99, 442.91 and 181.08
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Solution
The fourth proportional to 320.99, 442.91 and 181.08 is: 249.86
Step by Step Solution
- Step 1: Write the proportion equation
320.99 : 442.91 = 181.08 : x - Step 2: Convert to fraction form
320.99/442.91 = 181.08/x - Step 3: Cross multiply
320.99x = 442.91 × 181.08 - Step 4: Simplify right side
320.99x = 80,201.24 - Step 5: Solve for x
x = 80,201.24/320.99 - Step 6: Final answer
x = 249.86
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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.