Finding the Fourth Proportional to 207,233.20, 310,849.80 and 74,177.20
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Solution
The fourth proportional to 207,233.20, 310,849.80 and 74,177.20 is: 111,265.80
Step by Step Solution
- Step 1: Write the proportion equation
207,233.20 : 310,849.80 = 74,177.20 : x - Step 2: Convert to fraction form
207,233.20/310,849.80 = 74,177.20/x - Step 3: Cross multiply
207,233.20x = 310,849.80 × 74,177.20 - Step 4: Simplify right side
207,233.20x = 23,057,967,784.56 - Step 5: Solve for x
x = 23,057,967,784.56/207,233.20 - Step 6: Final answer
x = 111,265.80
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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.