Finding the Fourth Proportional to 331,322.60, 497,129.70 and 153,738.20
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Solution
The fourth proportional to 331,322.60, 497,129.70 and 153,738.20 is: 230,674.95
Step by Step Solution
- Step 1: Write the proportion equation
331,322.60 : 497,129.70 = 153,738.20 : x - Step 2: Convert to fraction form
331,322.60/497,129.70 = 153,738.20/x - Step 3: Cross multiply
331,322.60x = 497,129.70 × 153,738.20 - Step 4: Simplify right side
331,322.60x = 76,427,825,244.54 - Step 5: Solve for x
x = 76,427,825,244.54/331,322.60 - Step 6: Final answer
x = 230,674.95
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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.