Finding the Fourth Proportional to 287,343.18, 396,534.06 and 166,507.74
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Solution
The fourth proportional to 287,343.18, 396,534.06 and 166,507.74 is: 229,780.95
Step by Step Solution
- Step 1: Write the proportion equation
287,343.18 : 396,534.06 = 166,507.74 : x - Step 2: Convert to fraction form
287,343.18/396,534.06 = 166,507.74/x - Step 3: Cross multiply
287,343.18x = 396,534.06 × 166,507.74 - Step 4: Simplify right side
287,343.18x = 66,025,990,163.62 - Step 5: Solve for x
x = 66,025,990,163.62/287,343.18 - Step 6: Final answer
x = 229,780.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.