Finding the Fourth Proportional to 197,322.48, 272,396.10 and 115,639.44
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Solution
The fourth proportional to 197,322.48, 272,396.10 and 115,639.44 is: 159,635.80
Step by Step Solution
- Step 1: Write the proportion equation
197,322.48 : 272,396.10 = 115,639.44 : x - Step 2: Convert to fraction form
197,322.48/272,396.10 = 115,639.44/x - Step 3: Cross multiply
197,322.48x = 272,396.10 × 115,639.44 - Step 4: Simplify right side
197,322.48x = 31,499,731,883.99 - Step 5: Solve for x
x = 31,499,731,883.99/197,322.48 - Step 6: Final answer
x = 159,635.80
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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.