Finding the Fourth Proportional to 220,997.60, 304,966.08 and 125,491.68
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Solution
The fourth proportional to 220,997.60, 304,966.08 and 125,491.68 is: 173,172.49
Step by Step Solution
- Step 1: Write the proportion equation
220,997.60 : 304,966.08 = 125,491.68 : x - Step 2: Convert to fraction form
220,997.60/304,966.08 = 125,491.68/x - Step 3: Cross multiply
220,997.60x = 304,966.08 × 125,491.68 - Step 4: Simplify right side
220,997.60x = 38,270,705,722.21 - Step 5: Solve for x
x = 38,270,705,722.21/220,997.60 - Step 6: Final answer
x = 173,172.49
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.