Finding the Fourth Proportional to 303,415.30, 455,305.20 and 125,903.80
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Solution
The fourth proportional to 303,415.30, 455,305.20 and 125,903.80 is: 188,931.33
Step by Step Solution
- Step 1: Write the proportion equation
303,415.30 : 455,305.20 = 125,903.80 : x - Step 2: Convert to fraction form
303,415.30/455,305.20 = 125,903.80/x - Step 3: Cross multiply
303,415.30x = 455,305.20 × 125,903.80 - Step 4: Simplify right side
303,415.30x = 57,324,654,839.76 - Step 5: Solve for x
x = 57,324,654,839.76/303,415.30 - Step 6: Final answer
x = 188,931.33
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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.