Finding the Fourth Proportional to 691,450.24, 1,037,175.12 and 166,138.24
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Solution
The fourth proportional to 691,450.24, 1,037,175.12 and 166,138.24 is: 249,207.30
Step by Step Solution
- Step 1: Write the proportion equation
691,450.24 : 1,037,175.12 = 166,138.24 : x - Step 2: Convert to fraction form
691,450.24/1,037,175.12 = 166,138.24/x - Step 3: Cross multiply
691,450.24x = 1,037,175.12 × 166,138.24 - Step 4: Simplify right side
691,450.24x = 172,314,449,008.59 - Step 5: Solve for x
x = 172,314,449,008.59/691,450.24 - Step 6: Final answer
x = 249,207.30
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1.5x scale
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.