Finding the Fourth Proportional to 207,207.42, 310,905.45 and 100,533.80
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Solution
The fourth proportional to 207,207.42, 310,905.45 and 100,533.80 is: 150,846.46
Step by Step Solution
- Step 1: Write the proportion equation
207,207.42 : 310,905.45 = 100,533.80 : x - Step 2: Convert to fraction form
207,207.42/310,905.45 = 100,533.80/x - Step 3: Cross multiply
207,207.42x = 310,905.45 × 100,533.80 - Step 4: Simplify right side
207,207.42x = 31,256,504,774.68 - Step 5: Solve for x
x = 31,256,504,774.68/207,207.42 - Step 6: Final answer
x = 150,846.46
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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.