Finding the Fourth Proportional to 251,523.72, 347,109.30 and 138,349.44
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Solution
The fourth proportional to 251,523.72, 347,109.30 and 138,349.44 is: 190,925.84
Step by Step Solution
- Step 1: Write the proportion equation
251,523.72 : 347,109.30 = 138,349.44 : x - Step 2: Convert to fraction form
251,523.72/347,109.30 = 138,349.44/x - Step 3: Cross multiply
251,523.72x = 347,109.30 × 138,349.44 - Step 4: Simplify right side
251,523.72x = 48,022,377,273.79 - Step 5: Solve for x
x = 48,022,377,273.79/251,523.72 - Step 6: Final answer
x = 190,925.84
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1.5x scale
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.