Finding the Fourth Proportional to 192,072.80, 288,368.40 and 122,088.80
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Solution
The fourth proportional to 192,072.80, 288,368.40 and 122,088.80 is: 183,297.96
Step by Step Solution
- Step 1: Write the proportion equation
192,072.80 : 288,368.40 = 122,088.80 : x - Step 2: Convert to fraction form
192,072.80/288,368.40 = 122,088.80/x - Step 3: Cross multiply
192,072.80x = 288,368.40 × 122,088.80 - Step 4: Simplify right side
192,072.80x = 35,206,551,913.92 - Step 5: Solve for x
x = 35,206,551,913.92/192,072.80 - Step 6: Final answer
x = 183,297.96
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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.