Finding the Fourth Proportional to 313,676.88, 432,876.74 and 170,436.92
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Solution
The fourth proportional to 313,676.88, 432,876.74 and 170,436.92 is: 235,204.39
Step by Step Solution
- Step 1: Write the proportion equation
313,676.88 : 432,876.74 = 170,436.92 : x - Step 2: Convert to fraction form
313,676.88/432,876.74 = 170,436.92/x - Step 3: Cross multiply
313,676.88x = 432,876.74 × 170,436.92 - Step 4: Simplify right side
313,676.88x = 73,778,178,535.25 - Step 5: Solve for x
x = 73,778,178,535.25/313,676.88 - Step 6: Final answer
x = 235,204.39
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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.