Finding the Fourth Proportional to 252,082.99, 347,878.16 and 138,903.31
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Solution
The fourth proportional to 252,082.99, 347,878.16 and 138,903.31 is: 191,688.57
Step by Step Solution
- Step 1: Write the proportion equation
252,082.99 : 347,878.16 = 138,903.31 : x - Step 2: Convert to fraction form
252,082.99/347,878.16 = 138,903.31/x - Step 3: Cross multiply
252,082.99x = 347,878.16 × 138,903.31 - Step 4: Simplify right side
252,082.99x = 48,321,427,900.71 - Step 5: Solve for x
x = 48,321,427,900.71/252,082.99 - Step 6: Final answer
x = 191,688.57
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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.