Finding the Fourth Proportional to 312,086.81, 430,977.24 and 295,084.60
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Solution
The fourth proportional to 312,086.81, 430,977.24 and 295,084.60 is: 407,497.99
Step by Step Solution
- Step 1: Write the proportion equation
312,086.81 : 430,977.24 = 295,084.60 : x - Step 2: Convert to fraction form
312,086.81/430,977.24 = 295,084.60/x - Step 3: Cross multiply
312,086.81x = 430,977.24 × 295,084.60 - Step 4: Simplify right side
312,086.81x = 127,174,744,999.08 - Step 5: Solve for x
x = 127,174,744,999.08/312,086.81 - Step 6: Final answer
x = 407,497.99
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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.