Finding the Fourth Proportional to 305,427.70, 459,125.70 and 217,291.60
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Solution
The fourth proportional to 305,427.70, 459,125.70 and 217,291.60 is: 326,637.56
Step by Step Solution
- Step 1: Write the proportion equation
305,427.70 : 459,125.70 = 217,291.60 : x - Step 2: Convert to fraction form
305,427.70/459,125.70 = 217,291.60/x - Step 3: Cross multiply
305,427.70x = 459,125.70 × 217,291.60 - Step 4: Simplify right side
305,427.70x = 99,764,157,954.12 - Step 5: Solve for x
x = 99,764,157,954.12/305,427.70 - Step 6: Final answer
x = 326,637.56
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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.