Finding the Fourth Proportional to 224.08, 309.21 and 130.81
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Solution
The fourth proportional to 224.08, 309.21 and 130.81 is: 180.50
Step by Step Solution
- Step 1: Write the proportion equation
224.08 : 309.21 = 130.81 : x - Step 2: Convert to fraction form
224.08/309.21 = 130.81/x - Step 3: Cross multiply
224.08x = 309.21 × 130.81 - Step 4: Simplify right side
224.08x = 40,447.08 - Step 5: Solve for x
x = 40,447.08/224.08 - Step 6: Final answer
x = 180.50
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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.