Finding the Fourth Proportional to 251,605.52, 347,215.60 and 138,425.84
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Solution
The fourth proportional to 251,605.52, 347,215.60 and 138,425.84 is: 191,027.65
Step by Step Solution
- Step 1: Write the proportion equation
251,605.52 : 347,215.60 = 138,425.84 : x - Step 2: Convert to fraction form
251,605.52/347,215.60 = 138,425.84/x - Step 3: Cross multiply
251,605.52x = 347,215.60 × 138,425.84 - Step 4: Simplify right side
251,605.52x = 48,063,611,091.10 - Step 5: Solve for x
x = 48,063,611,091.10/251,605.52 - Step 6: Final answer
x = 191,027.65
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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.