Finding the Fourth Proportional to 311,833.24, 430,328.58 and 168,593.20
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Solution
The fourth proportional to 311,833.24, 430,328.58 and 168,593.20 is: 232,657.92
Step by Step Solution
- Step 1: Write the proportion equation
311,833.24 : 430,328.58 = 168,593.20 : x - Step 2: Convert to fraction form
311,833.24/430,328.58 = 168,593.20/x - Step 3: Cross multiply
311,833.24x = 430,328.58 × 168,593.20 - Step 4: Simplify right side
311,833.24x = 72,550,472,353.66 - Step 5: Solve for x
x = 72,550,472,353.66/311,833.24 - Step 6: Final answer
x = 232,657.92
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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.