Finding the Fourth Proportional to 216,387.68, 298,610.62 and 131,532.08
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Solution
The fourth proportional to 216,387.68, 298,610.62 and 131,532.08 is: 181,511.60
Step by Step Solution
- Step 1: Write the proportion equation
216,387.68 : 298,610.62 = 131,532.08 : x - Step 2: Convert to fraction form
216,387.68/298,610.62 = 131,532.08/x - Step 3: Cross multiply
216,387.68x = 298,610.62 × 131,532.08 - Step 4: Simplify right side
216,387.68x = 39,276,874,136.81 - Step 5: Solve for x
x = 39,276,874,136.81/216,387.68 - Step 6: Final answer
x = 181,511.60
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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.