Finding the Fourth Proportional to 305,176.76, 421,148.98 and 169,216.44
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Solution
The fourth proportional to 305,176.76, 421,148.98 and 169,216.44 is: 233,521.49
Step by Step Solution
- Step 1: Write the proportion equation
305,176.76 : 421,148.98 = 169,216.44 : x - Step 2: Convert to fraction form
305,176.76/421,148.98 = 169,216.44/x - Step 3: Cross multiply
305,176.76x = 421,148.98 × 169,216.44 - Step 4: Simplify right side
305,176.76x = 71,265,331,105.23 - Step 5: Solve for x
x = 71,265,331,105.23/305,176.76 - Step 6: Final answer
x = 233,521.49
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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.