Finding the Fourth Proportional to 267.25, 398.99 and 228.75
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Solution
The fourth proportional to 267.25, 398.99 and 228.75 is: 341.51
Step by Step Solution
- Step 1: Write the proportion equation
267.25 : 398.99 = 228.75 : x - Step 2: Convert to fraction form
267.25/398.99 = 228.75/x - Step 3: Cross multiply
267.25x = 398.99 × 228.75 - Step 4: Simplify right side
267.25x = 91,268.96 - Step 5: Solve for x
x = 91,268.96/267.25 - Step 6: Final answer
x = 341.51
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.