Finding the Fourth Proportional to 150,517.09, 207,722.90 and 83,449.09
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Solution
The fourth proportional to 150,517.09, 207,722.90 and 83,449.09 is: 115,164.91
Step by Step Solution
- Step 1: Write the proportion equation
150,517.09 : 207,722.90 = 83,449.09 : x - Step 2: Convert to fraction form
150,517.09/207,722.90 = 83,449.09/x - Step 3: Cross multiply
150,517.09x = 207,722.90 × 83,449.09 - Step 4: Simplify right side
150,517.09x = 17,334,286,353.54 - Step 5: Solve for x
x = 17,334,286,353.54/150,517.09 - Step 6: Final answer
x = 115,164.91
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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.