Finding the Fourth Proportional to 216,448.68, 298,713.12 and 120,955.92
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Solution
The fourth proportional to 216,448.68, 298,713.12 and 120,955.92 is: 166,926.96
Step by Step Solution
- Step 1: Write the proportion equation
216,448.68 : 298,713.12 = 120,955.92 : x - Step 2: Convert to fraction form
216,448.68/298,713.12 = 120,955.92/x - Step 3: Cross multiply
216,448.68x = 298,713.12 × 120,955.92 - Step 4: Simplify right side
216,448.68x = 36,131,120,245.67 - Step 5: Solve for x
x = 36,131,120,245.67/216,448.68 - Step 6: Final answer
x = 166,926.96
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1.5x scale
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.