Finding the Fourth Proportional to 251,614.12, 347,232.78 and 138,437.08
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Solution
The fourth proportional to 251,614.12, 347,232.78 and 138,437.08 is: 191,046.08
Step by Step Solution
- Step 1: Write the proportion equation
251,614.12 : 347,232.78 = 138,437.08 : x - Step 2: Convert to fraction form
251,614.12/347,232.78 = 138,437.08/x - Step 3: Cross multiply
251,614.12x = 347,232.78 × 138,437.08 - Step 4: Simplify right side
251,614.12x = 48,069,892,143.48 - Step 5: Solve for x
x = 48,069,892,143.48/251,614.12 - Step 6: Final answer
x = 191,046.08
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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.