Finding the Fourth Proportional to 216,207.22, 298,415.73 and 126,812.02
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Solution
The fourth proportional to 216,207.22, 298,415.73 and 126,812.02 is: 175,029.78
Step by Step Solution
- Step 1: Write the proportion equation
216,207.22 : 298,415.73 = 126,812.02 : x - Step 2: Convert to fraction form
216,207.22/298,415.73 = 126,812.02/x - Step 3: Cross multiply
216,207.22x = 298,415.73 × 126,812.02 - Step 4: Simplify right side
216,207.22x = 37,842,701,521.07 - Step 5: Solve for x
x = 37,842,701,521.07/216,207.22 - Step 6: Final answer
x = 175,029.78
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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.