Finding the Fourth Proportional to 201,221.80, 301,832.70 and 121,505.65
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Solution
The fourth proportional to 201,221.80, 301,832.70 and 121,505.65 is: 182,258.48
Step by Step Solution
- Step 1: Write the proportion equation
201,221.80 : 301,832.70 = 121,505.65 : x - Step 2: Convert to fraction form
201,221.80/301,832.70 = 121,505.65/x - Step 3: Cross multiply
201,221.80x = 301,832.70 × 121,505.65 - Step 4: Simplify right side
201,221.80x = 36,674,378,404.76 - Step 5: Solve for x
x = 36,674,378,404.76/201,221.80 - Step 6: Final answer
x = 182,258.48
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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.