Finding the Fourth Proportional to 251,553.69, 347,149.53 and 138,376.44
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Solution
The fourth proportional to 251,553.69, 347,149.53 and 138,376.44 is: 190,962.48
Step by Step Solution
- Step 1: Write the proportion equation
251,553.69 : 347,149.53 = 138,376.44 : x - Step 2: Convert to fraction form
251,553.69/347,149.53 = 138,376.44/x - Step 3: Cross multiply
251,553.69x = 347,149.53 × 138,376.44 - Step 4: Simplify right side
251,553.69x = 48,037,316,109.07 - Step 5: Solve for x
x = 48,037,316,109.07/251,553.69 - Step 6: Final answer
x = 190,962.48
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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.