Finding the Fourth Proportional to 138,022.07, 207,037.17 and 38,183.09
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Solution
The fourth proportional to 138,022.07, 207,037.17 and 38,183.09 is: 57,275.75
Step by Step Solution
- Step 1: Write the proportion equation
138,022.07 : 207,037.17 = 38,183.09 : x - Step 2: Convert to fraction form
138,022.07/207,037.17 = 38,183.09/x - Step 3: Cross multiply
138,022.07x = 207,037.17 × 38,183.09 - Step 4: Simplify right side
138,022.07x = 7,905,317,860.27 - Step 5: Solve for x
x = 7,905,317,860.27/138,022.07 - Step 6: Final answer
x = 57,275.75
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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.