Finding the Fourth Proportional to 216,890.32, 299,308.57 and 121,396.99
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Solution
The fourth proportional to 216,890.32, 299,308.57 and 121,396.99 is: 167,527.81
Step by Step Solution
- Step 1: Write the proportion equation
216,890.32 : 299,308.57 = 121,396.99 : x - Step 2: Convert to fraction form
216,890.32/299,308.57 = 121,396.99/x - Step 3: Cross multiply
216,890.32x = 299,308.57 × 121,396.99 - Step 4: Simplify right side
216,890.32x = 36,335,159,479.20 - Step 5: Solve for x
x = 36,335,159,479.20/216,890.32 - Step 6: Final answer
x = 167,527.81
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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.