Finding the Fourth Proportional to 198,421.29, 273,778.79 and 117,875.97
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Solution
The fourth proportional to 198,421.29, 273,778.79 and 117,875.97 is: 162,643.53
Step by Step Solution
- Step 1: Write the proportion equation
198,421.29 : 273,778.79 = 117,875.97 : x - Step 2: Convert to fraction form
198,421.29/273,778.79 = 117,875.97/x - Step 3: Cross multiply
198,421.29x = 273,778.79 × 117,875.97 - Step 4: Simplify right side
198,421.29x = 32,271,939,847.30 - Step 5: Solve for x
x = 32,271,939,847.30/198,421.29 - Step 6: Final answer
x = 162,643.53
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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.