Finding the Fourth Proportional to 216,541.80, 324,812.70 and 157,098.60
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Solution
The fourth proportional to 216,541.80, 324,812.70 and 157,098.60 is: 235,647.90
Step by Step Solution
- Step 1: Write the proportion equation
216,541.80 : 324,812.70 = 157,098.60 : x - Step 2: Convert to fraction form
216,541.80/324,812.70 = 157,098.60/x - Step 3: Cross multiply
216,541.80x = 324,812.70 × 157,098.60 - Step 4: Simplify right side
216,541.80x = 51,027,620,432.22 - Step 5: Solve for x
x = 51,027,620,432.22/216,541.80 - Step 6: Final answer
x = 235,647.90
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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.