Finding the Fourth Proportional to 199,630.80, 299,446.20 and 136,645.20
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Solution
The fourth proportional to 199,630.80, 299,446.20 and 136,645.20 is: 204,967.80
Step by Step Solution
- Step 1: Write the proportion equation
199,630.80 : 299,446.20 = 136,645.20 : x - Step 2: Convert to fraction form
199,630.80/299,446.20 = 136,645.20/x - Step 3: Cross multiply
199,630.80x = 299,446.20 × 136,645.20 - Step 4: Simplify right side
199,630.80x = 40,917,885,888.24 - Step 5: Solve for x
x = 40,917,885,888.24/199,630.80 - Step 6: Final answer
x = 204,967.80
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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.