Finding the Fourth Proportional to 253,535.08, 349,864.53 and 138,791.53
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Solution
The fourth proportional to 253,535.08, 349,864.53 and 138,791.53 is: 191,524.71
Step by Step Solution
- Step 1: Write the proportion equation
253,535.08 : 349,864.53 = 138,791.53 : x - Step 2: Convert to fraction form
253,535.08/349,864.53 = 138,791.53/x - Step 3: Cross multiply
253,535.08x = 349,864.53 × 138,791.53 - Step 4: Simplify right side
253,535.08x = 48,558,231,662.11 - Step 5: Solve for x
x = 48,558,231,662.11/253,535.08 - Step 6: Final answer
x = 191,524.71
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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.