Finding the Fourth Proportional to 253,780.68, 350,202.25 and 139,036.49
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Solution
The fourth proportional to 253,780.68, 350,202.25 and 139,036.49 is: 191,862.09
Step by Step Solution
- Step 1: Write the proportion equation
253,780.68 : 350,202.25 = 139,036.49 : x - Step 2: Convert to fraction form
253,780.68/350,202.25 = 139,036.49/x - Step 3: Cross multiply
253,780.68x = 350,202.25 × 139,036.49 - Step 4: Simplify right side
253,780.68x = 48,690,891,630.10 - Step 5: Solve for x
x = 48,690,891,630.10/253,780.68 - Step 6: Final answer
x = 191,862.09
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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.