Finding the Fourth Proportional to 163,622.20, 245,433.30 and 121,631.80
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Solution
The fourth proportional to 163,622.20, 245,433.30 and 121,631.80 is: 182,447.70
Step by Step Solution
- Step 1: Write the proportion equation
163,622.20 : 245,433.30 = 121,631.80 : x - Step 2: Convert to fraction form
163,622.20/245,433.30 = 121,631.80/x - Step 3: Cross multiply
163,622.20x = 245,433.30 × 121,631.80 - Step 4: Simplify right side
163,622.20x = 29,852,494,058.94 - Step 5: Solve for x
x = 29,852,494,058.94/163,622.20 - Step 6: Final answer
x = 182,447.70
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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.