Finding the Fourth Proportional to 310,961.21, 466,440.22 and 121,440.81
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Solution
The fourth proportional to 310,961.21, 466,440.22 and 121,440.81 is: 182,160.60
Step by Step Solution
- Step 1: Write the proportion equation
310,961.21 : 466,440.22 = 121,440.81 : x - Step 2: Convert to fraction form
310,961.21/466,440.22 = 121,440.81/x - Step 3: Cross multiply
310,961.21x = 466,440.22 × 121,440.81 - Step 4: Simplify right side
310,961.21x = 56,644,880,034.33 - Step 5: Solve for x
x = 56,644,880,034.33/310,961.21 - Step 6: Final answer
x = 182,160.60
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.