Finding the Fourth Proportional to 198,643.18, 274,130.58 and 107,998.96
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Solution
The fourth proportional to 198,643.18, 274,130.58 and 107,998.96 is: 149,040.19
Step by Step Solution
- Step 1: Write the proportion equation
198,643.18 : 274,130.58 = 107,998.96 : x - Step 2: Convert to fraction form
198,643.18/274,130.58 = 107,998.96/x - Step 3: Cross multiply
198,643.18x = 274,130.58 × 107,998.96 - Step 4: Simplify right side
198,643.18x = 29,605,817,544.20 - Step 5: Solve for x
x = 29,605,817,544.20/198,643.18 - Step 6: Final answer
x = 149,040.19
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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.