Finding the Fourth Proportional to 312,512.54, 430,983.84 and 205,041.74
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Solution
The fourth proportional to 312,512.54, 430,983.84 and 205,041.74 is: 282,771.62
Step by Step Solution
- Step 1: Write the proportion equation
312,512.54 : 430,983.84 = 205,041.74 : x - Step 2: Convert to fraction form
312,512.54/430,983.84 = 205,041.74/x - Step 3: Cross multiply
312,512.54x = 430,983.84 × 205,041.74 - Step 4: Simplify right side
312,512.54x = 88,369,676,465.48 - Step 5: Solve for x
x = 88,369,676,465.48/312,512.54 - Step 6: Final answer
x = 282,771.62
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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.