Finding the Fourth Proportional to 224.60, 309.84 and 145.91
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Solution
The fourth proportional to 224.60, 309.84 and 145.91 is: 201.28
Step by Step Solution
- Step 1: Write the proportion equation
224.60 : 309.84 = 145.91 : x - Step 2: Convert to fraction form
224.60/309.84 = 145.91/x - Step 3: Cross multiply
224.60x = 309.84 × 145.91 - Step 4: Simplify right side
224.60x = 45,207.98 - Step 5: Solve for x
x = 45,207.98/224.60 - Step 6: Final answer
x = 201.28
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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.