Finding the Fourth Proportional to 213,093.57, 319,289.12 and 191,119.70
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Solution
The fourth proportional to 213,093.57, 319,289.12 and 191,119.70 is: 286,364.52
Step by Step Solution
- Step 1: Write the proportion equation
213,093.57 : 319,289.12 = 191,119.70 : x - Step 2: Convert to fraction form
213,093.57/319,289.12 = 191,119.70/x - Step 3: Cross multiply
213,093.57x = 319,289.12 × 191,119.70 - Step 4: Simplify right side
213,093.57x = 61,022,438,275.62 - Step 5: Solve for x
x = 61,022,438,275.62/213,093.57 - Step 6: Final answer
x = 286,364.52
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.