Finding the Fourth Proportional to 212,722.92, 293,563.79 and 117,235.77
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Solution
The fourth proportional to 212,722.92, 293,563.79 and 117,235.77 is: 161,788.75
Step by Step Solution
- Step 1: Write the proportion equation
212,722.92 : 293,563.79 = 117,235.77 : x - Step 2: Convert to fraction form
212,722.92/293,563.79 = 117,235.77/x - Step 3: Cross multiply
212,722.92x = 293,563.79 × 117,235.77 - Step 4: Simplify right side
212,722.92x = 34,416,176,378.59 - Step 5: Solve for x
x = 34,416,176,378.59/212,722.92 - Step 6: Final answer
x = 161,788.75
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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.