Finding the Fourth Proportional to 314,135.76, 433,467.84 and 212,382.72
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Solution
The fourth proportional to 314,135.76, 433,467.84 and 212,382.72 is: 293,061.44
Step by Step Solution
- Step 1: Write the proportion equation
314,135.76 : 433,467.84 = 212,382.72 : x - Step 2: Convert to fraction form
314,135.76/433,467.84 = 212,382.72/x - Step 3: Cross multiply
314,135.76x = 433,467.84 × 212,382.72 - Step 4: Simplify right side
314,135.76x = 92,061,078,891.72 - Step 5: Solve for x
x = 92,061,078,891.72/314,135.76 - Step 6: Final answer
x = 293,061.44
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1.5x scale
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.