Finding the Fourth Proportional to 192,459.80, 288,689.70 and 157,467.80
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Solution
The fourth proportional to 192,459.80, 288,689.70 and 157,467.80 is: 236,201.70
Step by Step Solution
- Step 1: Write the proportion equation
192,459.80 : 288,689.70 = 157,467.80 : x - Step 2: Convert to fraction form
192,459.80/288,689.70 = 157,467.80/x - Step 3: Cross multiply
192,459.80x = 288,689.70 × 157,467.80 - Step 4: Simplify right side
192,459.80x = 45,459,331,941.66 - Step 5: Solve for x
x = 45,459,331,941.66/192,459.80 - Step 6: Final answer
x = 236,201.70
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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.