Finding the Fourth Proportional to 216,521.05, 298,799.43 and 121,027.67
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Solution
The fourth proportional to 216,521.05, 298,799.43 and 121,027.67 is: 167,018.40
Step by Step Solution
- Step 1: Write the proportion equation
216,521.05 : 298,799.43 = 121,027.67 : x - Step 2: Convert to fraction form
216,521.05/298,799.43 = 121,027.67/x - Step 3: Cross multiply
216,521.05x = 298,799.43 × 121,027.67 - Step 4: Simplify right side
216,521.05x = 36,162,998,810.23 - Step 5: Solve for x
x = 36,162,998,810.23/216,521.05 - Step 6: Final answer
x = 167,018.40
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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.