Finding the Fourth Proportional to 251,791.84, 347,472.48 and 138,614.68
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Solution
The fourth proportional to 251,791.84, 347,472.48 and 138,614.68 is: 191,288.12
Step by Step Solution
- Step 1: Write the proportion equation
251,791.84 : 347,472.48 = 138,614.68 : x - Step 2: Convert to fraction form
251,791.84/347,472.48 = 138,614.68/x - Step 3: Cross multiply
251,791.84x = 347,472.48 × 138,614.68 - Step 4: Simplify right side
251,791.84x = 48,164,786,624.01 - Step 5: Solve for x
x = 48,164,786,624.01/251,791.84 - Step 6: Final answer
x = 191,288.12
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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.