Finding the Fourth Proportional to 216,700.15, 299,029.97 and 121,188.39
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Solution
The fourth proportional to 216,700.15, 299,029.97 and 121,188.39 is: 167,230.90
Step by Step Solution
- Step 1: Write the proportion equation
216,700.15 : 299,029.97 = 121,188.39 : x - Step 2: Convert to fraction form
216,700.15/299,029.97 = 121,188.39/x - Step 3: Cross multiply
216,700.15x = 299,029.97 × 121,188.39 - Step 4: Simplify right side
216,700.15x = 36,238,960,626.05 - Step 5: Solve for x
x = 36,238,960,626.05/216,700.15 - Step 6: Final answer
x = 167,230.90
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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.