Finding the Fourth Proportional to 203,316.84, 280,569.14 and 112,676.68
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Solution
The fourth proportional to 203,316.84, 280,569.14 and 112,676.68 is: 155,489.33
Step by Step Solution
- Step 1: Write the proportion equation
203,316.84 : 280,569.14 = 112,676.68 : x - Step 2: Convert to fraction form
203,316.84/280,569.14 = 112,676.68/x - Step 3: Cross multiply
203,316.84x = 280,569.14 × 112,676.68 - Step 4: Simplify right side
203,316.84x = 31,613,599,205.66 - Step 5: Solve for x
x = 31,613,599,205.66/203,316.84 - Step 6: Final answer
x = 155,489.33
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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.