Finding the Fourth Proportional to 257,356.44, 386,107.56 and 107,668.44
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Solution
The fourth proportional to 257,356.44, 386,107.56 and 107,668.44 is: 161,533.16
Step by Step Solution
- Step 1: Write the proportion equation
257,356.44 : 386,107.56 = 107,668.44 : x - Step 2: Convert to fraction form
257,356.44/386,107.56 = 107,668.44/x - Step 3: Cross multiply
257,356.44x = 386,107.56 × 107,668.44 - Step 4: Simplify right side
257,356.44x = 41,571,598,657.41 - Step 5: Solve for x
x = 41,571,598,657.41/257,356.44 - Step 6: Final answer
x = 161,533.16
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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.