Finding the Fourth Proportional to 155,227.29, 214,231.42 and 86,323.63
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Solution
The fourth proportional to 155,227.29, 214,231.42 and 86,323.63 is: 119,136.49
Step by Step Solution
- Step 1: Write the proportion equation
155,227.29 : 214,231.42 = 86,323.63 : x - Step 2: Convert to fraction form
155,227.29/214,231.42 = 86,323.63/x - Step 3: Cross multiply
155,227.29x = 214,231.42 × 86,323.63 - Step 4: Simplify right side
155,227.29x = 18,493,233,834.45 - Step 5: Solve for x
x = 18,493,233,834.45/155,227.29 - Step 6: Final answer
x = 119,136.49
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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.