Finding the Fourth Proportional to 251,680.33, 347,318.91 and 138,503.08
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Solution
The fourth proportional to 251,680.33, 347,318.91 and 138,503.08 is: 191,134.28
Step by Step Solution
- Step 1: Write the proportion equation
251,680.33 : 347,318.91 = 138,503.08 : x - Step 2: Convert to fraction form
251,680.33/347,318.91 = 138,503.08/x - Step 3: Cross multiply
251,680.33x = 347,318.91 × 138,503.08 - Step 4: Simplify right side
251,680.33x = 48,104,738,777.24 - Step 5: Solve for x
x = 48,104,738,777.24/251,680.33 - Step 6: Final answer
x = 191,134.28
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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.