Finding the Fourth Proportional to 163,921.40, 245,882.10 and 161,463.80
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Solution
The fourth proportional to 163,921.40, 245,882.10 and 161,463.80 is: 242,195.70
Step by Step Solution
- Step 1: Write the proportion equation
163,921.40 : 245,882.10 = 161,463.80 : x - Step 2: Convert to fraction form
163,921.40/245,882.10 = 161,463.80/x - Step 3: Cross multiply
163,921.40x = 245,882.10 × 161,463.80 - Step 4: Simplify right side
163,921.40x = 39,701,058,217.98 - Step 5: Solve for x
x = 39,701,058,217.98/163,921.40 - Step 6: Final answer
x = 242,195.70
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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.