Finding the Fourth Proportional to 216,907.30, 325,409.55 and 83,775.70
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Solution
The fourth proportional to 216,907.30, 325,409.55 and 83,775.70 is: 125,682.32
Step by Step Solution
- Step 1: Write the proportion equation
216,907.30 : 325,409.55 = 83,775.70 : x - Step 2: Convert to fraction form
216,907.30/325,409.55 = 83,775.70/x - Step 3: Cross multiply
216,907.30x = 325,409.55 × 83,775.70 - Step 4: Simplify right side
216,907.30x = 27,261,412,837.94 - Step 5: Solve for x
x = 27,261,412,837.94/216,907.30 - Step 6: Final answer
x = 125,682.32
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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.