Finding the Fourth Proportional to 253,701.84, 380,788.92 and 129,136.08
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Solution
The fourth proportional to 253,701.84, 380,788.92 and 129,136.08 is: 193,824.33
Step by Step Solution
- Step 1: Write the proportion equation
253,701.84 : 380,788.92 = 129,136.08 : x - Step 2: Convert to fraction form
253,701.84/380,788.92 = 129,136.08/x - Step 3: Cross multiply
253,701.84x = 380,788.92 × 129,136.08 - Step 4: Simplify right side
253,701.84x = 49,173,588,436.23 - Step 5: Solve for x
x = 49,173,588,436.23/253,701.84 - Step 6: Final answer
x = 193,824.33
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.