Finding the Fourth Proportional to 312,183.01, 430,813.79 and 168,943.02
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Solution
The fourth proportional to 312,183.01, 430,813.79 and 168,943.02 is: 233,142.03
Step by Step Solution
- Step 1: Write the proportion equation
312,183.01 : 430,813.79 = 168,943.02 : x - Step 2: Convert to fraction form
312,183.01/430,813.79 = 168,943.02/x - Step 3: Cross multiply
312,183.01x = 430,813.79 × 168,943.02 - Step 4: Simplify right side
312,183.01x = 72,782,980,913.52 - Step 5: Solve for x
x = 72,782,980,913.52/312,183.01 - Step 6: Final answer
x = 233,142.03
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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.