Finding the Fourth Proportional to 251,684.44, 347,326.98 and 138,509.80
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Solution
The fourth proportional to 251,684.44, 347,326.98 and 138,509.80 is: 191,144.87
Step by Step Solution
- Step 1: Write the proportion equation
251,684.44 : 347,326.98 = 138,509.80 : x - Step 2: Convert to fraction form
251,684.44/347,326.98 = 138,509.80/x - Step 3: Cross multiply
251,684.44x = 347,326.98 × 138,509.80 - Step 4: Simplify right side
251,684.44x = 48,108,190,534.40 - Step 5: Solve for x
x = 48,108,190,534.40/251,684.44 - Step 6: Final answer
x = 191,144.87
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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.