Finding the Fourth Proportional to 272.84, 378.23 and 258.75
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Solution
The fourth proportional to 272.84, 378.23 and 258.75 is: 358.70
Step by Step Solution
- Step 1: Write the proportion equation
272.84 : 378.23 = 258.75 : x - Step 2: Convert to fraction form
272.84/378.23 = 258.75/x - Step 3: Cross multiply
272.84x = 378.23 × 258.75 - Step 4: Simplify right side
272.84x = 97,865.72 - Step 5: Solve for x
x = 97,865.72/272.84 - Step 6: Final answer
x = 358.70
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Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.