Finding the Fourth Proportional to 163,945.20, 245,917.80 and 149,170.80
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Solution
The fourth proportional to 163,945.20, 245,917.80 and 149,170.80 is: 223,756.20
Step by Step Solution
- Step 1: Write the proportion equation
163,945.20 : 245,917.80 = 149,170.80 : x - Step 2: Convert to fraction form
163,945.20/245,917.80 = 149,170.80/x - Step 3: Cross multiply
163,945.20x = 245,917.80 × 149,170.80 - Step 4: Simplify right side
163,945.20x = 36,683,754,960.24 - Step 5: Solve for x
x = 36,683,754,960.24/163,945.20 - Step 6: Final answer
x = 223,756.20
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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.