Finding the Fourth Proportional to 205,207.20, 307,810.80 and 177,559.20
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Solution
The fourth proportional to 205,207.20, 307,810.80 and 177,559.20 is: 266,338.80
Step by Step Solution
- Step 1: Write the proportion equation
205,207.20 : 307,810.80 = 177,559.20 : x - Step 2: Convert to fraction form
205,207.20/307,810.80 = 177,559.20/x - Step 3: Cross multiply
205,207.20x = 307,810.80 × 177,559.20 - Step 4: Simplify right side
205,207.20x = 54,654,639,399.36 - Step 5: Solve for x
x = 54,654,639,399.36/205,207.20 - Step 6: Final answer
x = 266,338.80
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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.