Finding the Fourth Proportional to 254.79, 351.99 and 211.68
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Solution
The fourth proportional to 254.79, 351.99 and 211.68 is: 292.43
Step by Step Solution
- Step 1: Write the proportion equation
254.79 : 351.99 = 211.68 : x - Step 2: Convert to fraction form
254.79/351.99 = 211.68/x - Step 3: Cross multiply
254.79x = 351.99 × 211.68 - Step 4: Simplify right side
254.79x = 74,509.24 - Step 5: Solve for x
x = 74,509.24/254.79 - Step 6: Final answer
x = 292.43
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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.