Finding the Fourth Proportional to 207,201.41, 311,387.13 and 122,977.31
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Solution
The fourth proportional to 207,201.41, 311,387.13 and 122,977.31 is: 184,813.18
Step by Step Solution
- Step 1: Write the proportion equation
207,201.41 : 311,387.13 = 122,977.31 : x - Step 2: Convert to fraction form
207,201.41/311,387.13 = 122,977.31/x - Step 3: Cross multiply
207,201.41x = 311,387.13 × 122,977.31 - Step 4: Simplify right side
207,201.41x = 38,293,550,059.08 - Step 5: Solve for x
x = 38,293,550,059.08/207,201.41 - Step 6: Final answer
x = 184,813.18
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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.