Finding the Fourth Proportional to 197,278.92, 272,244.38 and 112,396.59
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Solution
The fourth proportional to 197,278.92, 272,244.38 and 112,396.59 is: 155,106.99
Step by Step Solution
- Step 1: Write the proportion equation
197,278.92 : 272,244.38 = 112,396.59 : x - Step 2: Convert to fraction form
197,278.92/272,244.38 = 112,396.59/x - Step 3: Cross multiply
197,278.92x = 272,244.38 × 112,396.59 - Step 4: Simplify right side
197,278.92x = 30,599,339,396.68 - Step 5: Solve for x
x = 30,599,339,396.68/197,278.92 - Step 6: Final answer
x = 155,106.99
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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.