Finding the Fourth Proportional to 245.44, 368.07 and 142.75
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Solution
The fourth proportional to 245.44, 368.07 and 142.75 is: 214.07
Step by Step Solution
- Step 1: Write the proportion equation
245.44 : 368.07 = 142.75 : x - Step 2: Convert to fraction form
245.44/368.07 = 142.75/x - Step 3: Cross multiply
245.44x = 368.07 × 142.75 - Step 4: Simplify right side
245.44x = 52,541.99 - Step 5: Solve for x
x = 52,541.99/245.44 - Step 6: Final answer
x = 214.07
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.