Finding the Fourth Proportional to 355,479.23, 490,567.16 and 212,251.79
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Solution
The fourth proportional to 355,479.23, 490,567.16 and 212,251.79 is: 292,910.95
Step by Step Solution
- Step 1: Write the proportion equation
355,479.23 : 490,567.16 = 212,251.79 : x - Step 2: Convert to fraction form
355,479.23/490,567.16 = 212,251.79/x - Step 3: Cross multiply
355,479.23x = 490,567.16 × 212,251.79 - Step 4: Simplify right side
355,479.23x = 104,123,757,825.22 - Step 5: Solve for x
x = 104,123,757,825.22/355,479.23 - Step 6: Final answer
x = 292,910.95
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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.