Finding the Fourth Proportional to 216,681.62, 324,389.97 and 126,447.80
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Solution
The fourth proportional to 216,681.62, 324,389.97 and 126,447.80 is: 189,302.62
Step by Step Solution
- Step 1: Write the proportion equation
216,681.62 : 324,389.97 = 126,447.80 : x - Step 2: Convert to fraction form
216,681.62/324,389.97 = 126,447.80/x - Step 3: Cross multiply
216,681.62x = 324,389.97 × 126,447.80 - Step 4: Simplify right side
216,681.62x = 41,018,396,426.62 - Step 5: Solve for x
x = 41,018,396,426.62/216,681.62 - Step 6: Final answer
x = 189,302.62
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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.