Finding the Fourth Proportional to 214,639.79, 321,959.70 and 74,398.41
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Solution
The fourth proportional to 214,639.79, 321,959.70 and 74,398.41 is: 111,597.62
Step by Step Solution
- Step 1: Write the proportion equation
214,639.79 : 321,959.70 = 74,398.41 : x - Step 2: Convert to fraction form
214,639.79/321,959.70 = 74,398.41/x - Step 3: Cross multiply
214,639.79x = 321,959.70 × 74,398.41 - Step 4: Simplify right side
214,639.79x = 23,953,289,764.08 - Step 5: Solve for x
x = 23,953,289,764.08/214,639.79 - Step 6: Final answer
x = 111,597.62
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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.