Finding the Fourth Proportional to 251,636.50, 347,260.80 and 138,461.68
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Solution
The fourth proportional to 251,636.50, 347,260.80 and 138,461.68 is: 191,078.46
Step by Step Solution
- Step 1: Write the proportion equation
251,636.50 : 347,260.80 = 138,461.68 : x - Step 2: Convert to fraction form
251,636.50/347,260.80 = 138,461.68/x - Step 3: Cross multiply
251,636.50x = 347,260.80 × 138,461.68 - Step 4: Simplify right side
251,636.50x = 48,082,313,766.14 - Step 5: Solve for x
x = 48,082,313,766.14/251,636.50 - Step 6: Final answer
x = 191,078.46
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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.