Finding the Fourth Proportional to 424.19, 636.05 and 177.19
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Solution
The fourth proportional to 424.19, 636.05 and 177.19 is: 265.68
Step by Step Solution
- Step 1: Write the proportion equation
424.19 : 636.05 = 177.19 : x - Step 2: Convert to fraction form
424.19/636.05 = 177.19/x - Step 3: Cross multiply
424.19x = 636.05 × 177.19 - Step 4: Simplify right side
424.19x = 112,697.63 - Step 5: Solve for x
x = 112,697.63/424.19 - Step 6: Final answer
x = 265.68
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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.