Finding the Fourth Proportional to 305,230.69, 421,244.99 and 177,903.55
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Solution
The fourth proportional to 305,230.69, 421,244.99 and 177,903.55 is: 245,522.42
Step by Step Solution
- Step 1: Write the proportion equation
305,230.69 : 421,244.99 = 177,903.55 : x - Step 2: Convert to fraction form
305,230.69/421,244.99 = 177,903.55/x - Step 3: Cross multiply
305,230.69x = 421,244.99 × 177,903.55 - Step 4: Simplify right side
305,230.69x = 74,940,979,140.71 - Step 5: Solve for x
x = 74,940,979,140.71/305,230.69 - Step 6: Final answer
x = 245,522.42
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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.