Finding the Fourth Proportional to 311,842.25, 430,341.93 and 168,601.95
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Solution
The fourth proportional to 311,842.25, 430,341.93 and 168,601.95 is: 232,670.49
Step by Step Solution
- Step 1: Write the proportion equation
311,842.25 : 430,341.93 = 168,601.95 : x - Step 2: Convert to fraction form
311,842.25/430,341.93 = 168,601.95/x - Step 3: Cross multiply
311,842.25x = 430,341.93 × 168,601.95 - Step 4: Simplify right side
311,842.25x = 72,556,487,583.24 - Step 5: Solve for x
x = 72,556,487,583.24/311,842.25 - Step 6: Final answer
x = 232,670.49
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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.