Finding the Fourth Proportional to 315,688.26, 435,621.20 and 177,889.62
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Solution
The fourth proportional to 315,688.26, 435,621.20 and 177,889.62 is: 245,471.56
Step by Step Solution
- Step 1: Write the proportion equation
315,688.26 : 435,621.20 = 177,889.62 : x - Step 2: Convert to fraction form
315,688.26/435,621.20 = 177,889.62/x - Step 3: Cross multiply
315,688.26x = 435,621.20 × 177,889.62 - Step 4: Simplify right side
315,688.26x = 77,492,489,731.94 - Step 5: Solve for x
x = 77,492,489,731.94/315,688.26 - Step 6: Final answer
x = 245,471.56
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.