Finding the Fourth Proportional to 235,107.73, 324,455.09 and 138,318.40
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Solution
The fourth proportional to 235,107.73, 324,455.09 and 138,318.40 is: 190,883.17
Step by Step Solution
- Step 1: Write the proportion equation
235,107.73 : 324,455.09 = 138,318.40 : x - Step 2: Convert to fraction form
235,107.73/324,455.09 = 138,318.40/x - Step 3: Cross multiply
235,107.73x = 324,455.09 × 138,318.40 - Step 4: Simplify right side
235,107.73x = 44,878,108,920.66 - Step 5: Solve for x
x = 44,878,108,920.66/235,107.73 - Step 6: Final answer
x = 190,883.17
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1.5x scale
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.