Finding the Fourth Proportional to 212,986.52, 293,911.50 and 122,278.63
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Solution
The fourth proportional to 212,986.52, 293,911.50 and 122,278.63 is: 168,738.83
Step by Step Solution
- Step 1: Write the proportion equation
212,986.52 : 293,911.50 = 122,278.63 : x - Step 2: Convert to fraction form
212,986.52/293,911.50 = 122,278.63/x - Step 3: Cross multiply
212,986.52x = 293,911.50 × 122,278.63 - Step 4: Simplify right side
212,986.52x = 35,939,095,561.25 - Step 5: Solve for x
x = 35,939,095,561.25/212,986.52 - Step 6: Final answer
x = 168,738.83
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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.