Finding the Fourth Proportional to 197,715.20, 272,847.14 and 107,071.88
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Solution
The fourth proportional to 197,715.20, 272,847.14 and 107,071.88 is: 147,759.28
Step by Step Solution
- Step 1: Write the proportion equation
197,715.20 : 272,847.14 = 107,071.88 : x - Step 2: Convert to fraction form
197,715.20/272,847.14 = 107,071.88/x - Step 3: Cross multiply
197,715.20x = 272,847.14 × 107,071.88 - Step 4: Simplify right side
197,715.20x = 29,214,256,232.42 - Step 5: Solve for x
x = 29,214,256,232.42/197,715.20 - Step 6: Final answer
x = 147,759.28
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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.