Finding the Fourth Proportional to 198,615.80, 297,923.70 and 163,623.80
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Solution
The fourth proportional to 198,615.80, 297,923.70 and 163,623.80 is: 245,435.70
Step by Step Solution
- Step 1: Write the proportion equation
198,615.80 : 297,923.70 = 163,623.80 : x - Step 2: Convert to fraction form
198,615.80/297,923.70 = 163,623.80/x - Step 3: Cross multiply
198,615.80x = 297,923.70 × 163,623.80 - Step 4: Simplify right side
198,615.80x = 48,747,407,904.06 - Step 5: Solve for x
x = 48,747,407,904.06/198,615.80 - Step 6: Final answer
x = 245,435.70
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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.