Finding the Fourth Proportional to 198,585.74, 274,040.28 and 107,939.63
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Solution
The fourth proportional to 198,585.74, 274,040.28 and 107,939.63 is: 148,952.32
Step by Step Solution
- Step 1: Write the proportion equation
198,585.74 : 274,040.28 = 107,939.63 : x - Step 2: Convert to fraction form
198,585.74/274,040.28 = 107,939.63/x - Step 3: Cross multiply
198,585.74x = 274,040.28 × 107,939.63 - Step 4: Simplify right side
198,585.74x = 29,579,805,058.10 - Step 5: Solve for x
x = 29,579,805,058.10/198,585.74 - Step 6: Final answer
x = 148,952.32
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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.