Finding the Fourth Proportional to 197,112.63, 295,811.51 and 78,816.99
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Solution
The fourth proportional to 197,112.63, 295,811.51 and 78,816.99 is: 118,282.49
Step by Step Solution
- Step 1: Write the proportion equation
197,112.63 : 295,811.51 = 78,816.99 : x - Step 2: Convert to fraction form
197,112.63/295,811.51 = 78,816.99/x - Step 3: Cross multiply
197,112.63x = 295,811.51 × 78,816.99 - Step 4: Simplify right side
197,112.63x = 23,314,973,984.11 - Step 5: Solve for x
x = 23,314,973,984.11/197,112.63 - Step 6: Final answer
x = 118,282.49
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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.