Finding the Fourth Proportional to 212,698.20, 293,529.79 and 117,211.05
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Solution
The fourth proportional to 212,698.20, 293,529.79 and 117,211.05 is: 161,754.70
Step by Step Solution
- Step 1: Write the proportion equation
212,698.20 : 293,529.79 = 117,211.05 : x - Step 2: Convert to fraction form
212,698.20/293,529.79 = 117,211.05/x - Step 3: Cross multiply
212,698.20x = 293,529.79 × 117,211.05 - Step 4: Simplify right side
212,698.20x = 34,404,935,038.69 - Step 5: Solve for x
x = 34,404,935,038.69/212,698.20 - Step 6: Final answer
x = 161,754.70
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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.