Finding the Fourth Proportional to 311,903.20, 467,854.80 and 125,048.80
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Solution
The fourth proportional to 311,903.20, 467,854.80 and 125,048.80 is: 187,573.20
Step by Step Solution
- Step 1: Write the proportion equation
311,903.20 : 467,854.80 = 125,048.80 : x - Step 2: Convert to fraction form
311,903.20/467,854.80 = 125,048.80/x - Step 3: Cross multiply
311,903.20x = 467,854.80 × 125,048.80 - Step 4: Simplify right side
311,903.20x = 58,504,681,314.24 - Step 5: Solve for x
x = 58,504,681,314.24/311,903.20 - Step 6: Final answer
x = 187,573.20
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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.