Finding the Fourth Proportional to 155.68, 214.50 and 144.52
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Solution
The fourth proportional to 155.68, 214.50 and 144.52 is: 199.12
Step by Step Solution
- Step 1: Write the proportion equation
155.68 : 214.50 = 144.52 : x - Step 2: Convert to fraction form
155.68/214.50 = 144.52/x - Step 3: Cross multiply
155.68x = 214.50 × 144.52 - Step 4: Simplify right side
155.68x = 30,999.54 - Step 5: Solve for x
x = 30,999.54/155.68 - Step 6: Final answer
x = 199.12
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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.