Finding the Fourth Proportional to 665.16, 997.77 and 202.91
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Solution
The fourth proportional to 665.16, 997.77 and 202.91 is: 304.37
Step by Step Solution
- Step 1: Write the proportion equation
665.16 : 997.77 = 202.91 : x - Step 2: Convert to fraction form
665.16/997.77 = 202.91/x - Step 3: Cross multiply
665.16x = 997.77 × 202.91 - Step 4: Simplify right side
665.16x = 202,452.14 - Step 5: Solve for x
x = 202,452.14/665.16 - Step 6: Final answer
x = 304.37
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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.