Finding the Fourth Proportional to 144,415.40, 216,392.70 and 120,914.60
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Solution
The fourth proportional to 144,415.40, 216,392.70 and 120,914.60 is: 181,178.99
Step by Step Solution
- Step 1: Write the proportion equation
144,415.40 : 216,392.70 = 120,914.60 : x - Step 2: Convert to fraction form
144,415.40/216,392.70 = 120,914.60/x - Step 3: Cross multiply
144,415.40x = 216,392.70 × 120,914.60 - Step 4: Simplify right side
144,415.40x = 26,165,036,763.42 - Step 5: Solve for x
x = 26,165,036,763.42/144,415.40 - Step 6: Final answer
x = 181,178.99
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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.