Finding the Fourth Proportional to 216,676.18, 299,041.32 and 121,202.68
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Solution
The fourth proportional to 216,676.18, 299,041.32 and 121,202.68 is: 167,275.47
Step by Step Solution
- Step 1: Write the proportion equation
216,676.18 : 299,041.32 = 121,202.68 : x - Step 2: Convert to fraction form
216,676.18/299,041.32 = 121,202.68/x - Step 3: Cross multiply
216,676.18x = 299,041.32 × 121,202.68 - Step 4: Simplify right side
216,676.18x = 36,244,609,414.74 - Step 5: Solve for x
x = 36,244,609,414.74/216,676.18 - Step 6: Final answer
x = 167,275.47
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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.