Finding the Fourth Proportional to 216,468.20, 298,532.70 and 135,903.23
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Solution
The fourth proportional to 216,468.20, 298,532.70 and 135,903.23 is: 187,425.03
Step by Step Solution
- Step 1: Write the proportion equation
216,468.20 : 298,532.70 = 135,903.23 : x - Step 2: Convert to fraction form
216,468.20/298,532.70 = 135,903.23/x - Step 3: Cross multiply
216,468.20x = 298,532.70 × 135,903.23 - Step 4: Simplify right side
216,468.20x = 40,571,558,190.62 - Step 5: Solve for x
x = 40,571,558,190.62/216,468.20 - Step 6: Final answer
x = 187,425.03
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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.