Finding the Fourth Proportional to 254.97, 351.68 and 161.55
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Solution
The fourth proportional to 254.97, 351.68 and 161.55 is: 222.82
Step by Step Solution
- Step 1: Write the proportion equation
254.97 : 351.68 = 161.55 : x - Step 2: Convert to fraction form
254.97/351.68 = 161.55/x - Step 3: Cross multiply
254.97x = 351.68 × 161.55 - Step 4: Simplify right side
254.97x = 56,813.10 - Step 5: Solve for x
x = 56,813.10/254.97 - Step 6: Final answer
x = 222.82
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.