Finding the Fourth Proportional to 431,719.76, 647,657.56 and 195,173.84
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Solution
The fourth proportional to 431,719.76, 647,657.56 and 195,173.84 is: 292,795.99
Step by Step Solution
- Step 1: Write the proportion equation
431,719.76 : 647,657.56 = 195,173.84 : x - Step 2: Convert to fraction form
431,719.76/647,657.56 = 195,173.84/x - Step 3: Cross multiply
431,719.76x = 647,657.56 × 195,173.84 - Step 4: Simplify right side
431,719.76x = 126,405,812,990.23 - Step 5: Solve for x
x = 126,405,812,990.23/431,719.76 - Step 6: Final answer
x = 292,795.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.