Finding the Fourth Proportional to 212,160.23, 292,780.70 and 121,545.53
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Solution
The fourth proportional to 212,160.23, 292,780.70 and 121,545.53 is: 167,732.59
Step by Step Solution
- Step 1: Write the proportion equation
212,160.23 : 292,780.70 = 121,545.53 : x - Step 2: Convert to fraction form
212,160.23/292,780.70 = 121,545.53/x - Step 3: Cross multiply
212,160.23x = 292,780.70 × 121,545.53 - Step 4: Simplify right side
212,160.23x = 35,586,183,283.64 - Step 5: Solve for x
x = 35,586,183,283.64/212,160.23 - Step 6: Final answer
x = 167,732.59
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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.