Finding the Fourth Proportional to 221,125.20, 331,687.80 and 110,533.20
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Solution
The fourth proportional to 221,125.20, 331,687.80 and 110,533.20 is: 165,799.80
Step by Step Solution
- Step 1: Write the proportion equation
221,125.20 : 331,687.80 = 110,533.20 : x - Step 2: Convert to fraction form
221,125.20/331,687.80 = 110,533.20/x - Step 3: Cross multiply
221,125.20x = 331,687.80 × 110,533.20 - Step 4: Simplify right side
221,125.20x = 36,662,513,934.96 - Step 5: Solve for x
x = 36,662,513,934.96/221,125.20 - Step 6: Final answer
x = 165,799.80
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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.