Finding the Fourth Proportional to 216,685.54, 324,944.07 and 74,503.81
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Solution
The fourth proportional to 216,685.54, 324,944.07 and 74,503.81 is: 111,726.75
Step by Step Solution
- Step 1: Write the proportion equation
216,685.54 : 324,944.07 = 74,503.81 : x - Step 2: Convert to fraction form
216,685.54/324,944.07 = 74,503.81/x - Step 3: Cross multiply
216,685.54x = 324,944.07 × 74,503.81 - Step 4: Simplify right side
216,685.54x = 24,209,571,251.91 - Step 5: Solve for x
x = 24,209,571,251.91/216,685.54 - Step 6: Final answer
x = 111,726.75
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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.