Finding the Fourth Proportional to 314,668.14, 434,253.20 and 178,698.30
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Solution
The fourth proportional to 314,668.14, 434,253.20 and 178,698.30 is: 246,609.99
Step by Step Solution
- Step 1: Write the proportion equation
314,668.14 : 434,253.20 = 178,698.30 : x - Step 2: Convert to fraction form
314,668.14/434,253.20 = 178,698.30/x - Step 3: Cross multiply
314,668.14x = 434,253.20 × 178,698.30 - Step 4: Simplify right side
314,668.14x = 77,600,307,716.07 - Step 5: Solve for x
x = 77,600,307,716.07/314,668.14 - Step 6: Final answer
x = 246,609.99
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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.