Finding the Fourth Proportional to 230,892.44, 318,628.52 and 128,919.63
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Solution
The fourth proportional to 230,892.44, 318,628.52 and 128,919.63 is: 177,907.39
Step by Step Solution
- Step 1: Write the proportion equation
230,892.44 : 318,628.52 = 128,919.63 : x - Step 2: Convert to fraction form
230,892.44/318,628.52 = 128,919.63/x - Step 3: Cross multiply
230,892.44x = 318,628.52 × 128,919.63 - Step 4: Simplify right side
230,892.44x = 41,077,470,261.25 - Step 5: Solve for x
x = 41,077,470,261.25/230,892.44 - Step 6: Final answer
x = 177,907.39
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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.