Finding the Fourth Proportional to 216,890.44, 299,305.87 and 121,397.11
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Solution
The fourth proportional to 216,890.44, 299,305.87 and 121,397.11 is: 167,526.37
Step by Step Solution
- Step 1: Write the proportion equation
216,890.44 : 299,305.87 = 121,397.11 : x - Step 2: Convert to fraction form
216,890.44/299,305.87 = 121,397.11/x - Step 3: Cross multiply
216,890.44x = 299,305.87 × 121,397.11 - Step 4: Simplify right side
216,890.44x = 36,334,867,624.04 - Step 5: Solve for x
x = 36,334,867,624.04/216,890.44 - Step 6: Final answer
x = 167,526.37
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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.