Finding the Fourth Proportional to 212,183.86, 292,816.62 and 121,539.76
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Solution
The fourth proportional to 212,183.86, 292,816.62 and 121,539.76 is: 167,726.53
Step by Step Solution
- Step 1: Write the proportion equation
212,183.86 : 292,816.62 = 121,539.76 : x - Step 2: Convert to fraction form
212,183.86/292,816.62 = 121,539.76/x - Step 3: Cross multiply
212,183.86x = 292,816.62 × 121,539.76 - Step 4: Simplify right side
212,183.86x = 35,588,861,718.81 - Step 5: Solve for x
x = 35,588,861,718.81/212,183.86 - Step 6: Final answer
x = 167,726.53
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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.