Finding the Fourth Proportional to 311,188.64, 428,536.64 and 270,334.08
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Solution
The fourth proportional to 311,188.64, 428,536.64 and 270,334.08 is: 372,275.99
Step by Step Solution
- Step 1: Write the proportion equation
311,188.64 : 428,536.64 = 270,334.08 : x - Step 2: Convert to fraction form
311,188.64/428,536.64 = 270,334.08/x - Step 3: Cross multiply
311,188.64x = 428,536.64 × 270,334.08 - Step 4: Simplify right side
311,188.64x = 115,848,058,320.69 - Step 5: Solve for x
x = 115,848,058,320.69/311,188.64 - Step 6: Final answer
x = 372,275.99
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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.