Finding the Fourth Proportional to 312,883.08, 431,838.18 and 185,628.84
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Solution
The fourth proportional to 312,883.08, 431,838.18 and 185,628.84 is: 256,203.12
Step by Step Solution
- Step 1: Write the proportion equation
312,883.08 : 431,838.18 = 185,628.84 : x - Step 2: Convert to fraction form
312,883.08/431,838.18 = 185,628.84/x - Step 3: Cross multiply
312,883.08x = 431,838.18 × 185,628.84 - Step 4: Simplify right side
312,883.08x = 80,161,620,421.11 - Step 5: Solve for x
x = 80,161,620,421.11/312,883.08 - Step 6: Final answer
x = 256,203.12
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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.