Finding the Fourth Proportional to 253,394.27, 349,684.05 and 138,672.99
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Solution
The fourth proportional to 253,394.27, 349,684.05 and 138,672.99 is: 191,368.70
Step by Step Solution
- Step 1: Write the proportion equation
253,394.27 : 349,684.05 = 138,672.99 : x - Step 2: Convert to fraction form
253,394.27/349,684.05 = 138,672.99/x - Step 3: Cross multiply
253,394.27x = 349,684.05 × 138,672.99 - Step 4: Simplify right side
253,394.27x = 48,491,731,020.39 - Step 5: Solve for x
x = 48,491,731,020.39/253,394.27 - Step 6: Final answer
x = 191,368.70
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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.