Finding the Fourth Proportional to 311,935.66, 430,472.50 and 168,695.70
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Solution
The fourth proportional to 311,935.66, 430,472.50 and 168,695.70 is: 232,800.77
Step by Step Solution
- Step 1: Write the proportion equation
311,935.66 : 430,472.50 = 168,695.70 : x - Step 2: Convert to fraction form
311,935.66/430,472.50 = 168,695.70/x - Step 3: Cross multiply
311,935.66x = 430,472.50 × 168,695.70 - Step 4: Simplify right side
311,935.66x = 72,618,859,718.25 - Step 5: Solve for x
x = 72,618,859,718.25/311,935.66 - Step 6: Final answer
x = 232,800.77
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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.