Finding the Fourth Proportional to 251,951.74, 347,693.38 and 138,774.49
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Solution
The fourth proportional to 251,951.74, 347,693.38 and 138,774.49 is: 191,508.78
Step by Step Solution
- Step 1: Write the proportion equation
251,951.74 : 347,693.38 = 138,774.49 : x - Step 2: Convert to fraction form
251,951.74/347,693.38 = 138,774.49/x - Step 3: Cross multiply
251,951.74x = 347,693.38 × 138,774.49 - Step 4: Simplify right side
251,951.74x = 48,250,969,053.54 - Step 5: Solve for x
x = 48,250,969,053.54/251,951.74 - Step 6: Final answer
x = 191,508.78
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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.