Finding the Fourth Proportional to 216,871.44, 299,284.11 and 121,387.02
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Solution
The fourth proportional to 216,871.44, 299,284.11 and 121,387.02 is: 167,514.94
Step by Step Solution
- Step 1: Write the proportion equation
216,871.44 : 299,284.11 = 121,387.02 : x - Step 2: Convert to fraction form
216,871.44/299,284.11 = 121,387.02/x - Step 3: Cross multiply
216,871.44x = 299,284.11 × 121,387.02 - Step 4: Simplify right side
216,871.44x = 36,329,206,246.25 - Step 5: Solve for x
x = 36,329,206,246.25/216,871.44 - Step 6: Final answer
x = 167,514.94
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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.