Finding the Fourth Proportional to 311,833.05, 430,329.56 and 168,593.10
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Solution
The fourth proportional to 311,833.05, 430,329.56 and 168,593.10 is: 232,658.45
Step by Step Solution
- Step 1: Write the proportion equation
311,833.05 : 430,329.56 = 168,593.10 : x - Step 2: Convert to fraction form
311,833.05/430,329.56 = 168,593.10/x - Step 3: Cross multiply
311,833.05x = 430,329.56 × 168,593.10 - Step 4: Simplify right side
311,833.05x = 72,550,593,699.07 - Step 5: Solve for x
x = 72,550,593,699.07/311,833.05 - Step 6: Final answer
x = 232,658.45
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1.5x scale
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.