Finding the Fourth Proportional to 215,923.37, 323,873.36 and 66,164.09
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Solution
The fourth proportional to 215,923.37, 323,873.36 and 66,164.09 is: 99,242.55
Step by Step Solution
- Step 1: Write the proportion equation
215,923.37 : 323,873.36 = 66,164.09 : x - Step 2: Convert to fraction form
215,923.37/323,873.36 = 66,164.09/x - Step 3: Cross multiply
215,923.37x = 323,873.36 × 66,164.09 - Step 4: Simplify right side
215,923.37x = 21,428,784,685.69 - Step 5: Solve for x
x = 21,428,784,685.69/215,923.37 - Step 6: Final answer
x = 99,242.55
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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.