Finding the Fourth Proportional to 246,530.20, 369,503.70 and 128,140.60
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Solution
The fourth proportional to 246,530.20, 369,503.70 and 128,140.60 is: 192,059.33
Step by Step Solution
- Step 1: Write the proportion equation
246,530.20 : 369,503.70 = 128,140.60 : x - Step 2: Convert to fraction form
246,530.20/369,503.70 = 128,140.60/x - Step 3: Cross multiply
246,530.20x = 369,503.70 × 128,140.60 - Step 4: Simplify right side
246,530.20x = 47,348,425,820.22 - Step 5: Solve for x
x = 47,348,425,820.22/246,530.20 - Step 6: Final answer
x = 192,059.33
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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.