Finding the Fourth Proportional to 216,838.21, 299,097.88 and 173,920.68
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Solution
The fourth proportional to 216,838.21, 299,097.88 and 173,920.68 is: 239,899.17
Step by Step Solution
- Step 1: Write the proportion equation
216,838.21 : 299,097.88 = 173,920.68 : x - Step 2: Convert to fraction form
216,838.21/299,097.88 = 173,920.68/x - Step 3: Cross multiply
216,838.21x = 299,097.88 × 173,920.68 - Step 4: Simplify right side
216,838.21x = 52,019,306,676.16 - Step 5: Solve for x
x = 52,019,306,676.16/216,838.21 - Step 6: Final answer
x = 239,899.17
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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.