Finding the Fourth Proportional to 312,306.57, 430,966.64 and 183,227.06
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Solution
The fourth proportional to 312,306.57, 430,966.64 and 183,227.06 is: 252,843.71
Step by Step Solution
- Step 1: Write the proportion equation
312,306.57 : 430,966.64 = 183,227.06 : x - Step 2: Convert to fraction form
312,306.57/430,966.64 = 183,227.06/x - Step 3: Cross multiply
312,306.57x = 430,966.64 × 183,227.06 - Step 4: Simplify right side
312,306.57x = 78,964,751,940.76 - Step 5: Solve for x
x = 78,964,751,940.76/312,306.57 - Step 6: Final answer
x = 252,843.71
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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.