Finding the Fourth Proportional to 306,989.74, 423,657.56 and 177,932.44
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Solution
The fourth proportional to 306,989.74, 423,657.56 and 177,932.44 is: 245,553.56
Step by Step Solution
- Step 1: Write the proportion equation
306,989.74 : 423,657.56 = 177,932.44 : x - Step 2: Convert to fraction form
306,989.74/423,657.56 = 177,932.44/x - Step 3: Cross multiply
306,989.74x = 423,657.56 × 177,932.44 - Step 4: Simplify right side
306,989.74x = 75,382,422,760.93 - Step 5: Solve for x
x = 75,382,422,760.93/306,989.74 - Step 6: Final answer
x = 245,553.56
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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.