Finding the Fourth Proportional to 230.64, 317.88 and 199.44
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Solution
The fourth proportional to 230.64, 317.88 and 199.44 is: 274.88
Step by Step Solution
- Step 1: Write the proportion equation
230.64 : 317.88 = 199.44 : x - Step 2: Convert to fraction form
230.64/317.88 = 199.44/x - Step 3: Cross multiply
230.64x = 317.88 × 199.44 - Step 4: Simplify right side
230.64x = 63,397.99 - Step 5: Solve for x
x = 63,397.99/230.64 - Step 6: Final answer
x = 274.88
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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.