Finding the Fourth Proportional to 355,193.19, 490,176.22 and 212,036.32
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Solution
The fourth proportional to 355,193.19, 490,176.22 and 212,036.32 is: 292,615.86
Step by Step Solution
- Step 1: Write the proportion equation
355,193.19 : 490,176.22 = 212,036.32 : x - Step 2: Convert to fraction form
355,193.19/490,176.22 = 212,036.32/x - Step 3: Cross multiply
355,193.19x = 490,176.22 × 212,036.32 - Step 4: Simplify right side
355,193.19x = 103,935,161,840.31 - Step 5: Solve for x
x = 103,935,161,840.31/355,193.19 - Step 6: Final answer
x = 292,615.86
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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.