Finding the Fourth Proportional to 251,765.30, 347,436.18 and 138,588.05
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Solution
The fourth proportional to 251,765.30, 347,436.18 and 138,588.05 is: 191,251.55
Step by Step Solution
- Step 1: Write the proportion equation
251,765.30 : 347,436.18 = 138,588.05 : x - Step 2: Convert to fraction form
251,765.30/347,436.18 = 138,588.05/x - Step 3: Cross multiply
251,765.30x = 347,436.18 × 138,588.05 - Step 4: Simplify right side
251,765.30x = 48,150,503,554.24 - Step 5: Solve for x
x = 48,150,503,554.24/251,765.30 - Step 6: Final answer
x = 191,251.55
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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.