Finding the Fourth Proportional to 177,537.40, 266,457.30 and 72,431.80
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Solution
The fourth proportional to 177,537.40, 266,457.30 and 72,431.80 is: 108,709.39
Step by Step Solution
- Step 1: Write the proportion equation
177,537.40 : 266,457.30 = 72,431.80 : x - Step 2: Convert to fraction form
177,537.40/266,457.30 = 72,431.80/x - Step 3: Cross multiply
177,537.40x = 266,457.30 × 72,431.80 - Step 4: Simplify right side
177,537.40x = 19,299,981,862.14 - Step 5: Solve for x
x = 19,299,981,862.14/177,537.40 - Step 6: Final answer
x = 108,709.39
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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.