Finding the Fourth Proportional to 325,259.20, 487,961.70 and 125,561.80
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Solution
The fourth proportional to 325,259.20, 487,961.70 and 125,561.80 is: 188,370.84
Step by Step Solution
- Step 1: Write the proportion equation
325,259.20 : 487,961.70 = 125,561.80 : x - Step 2: Convert to fraction form
325,259.20/487,961.70 = 125,561.80/x - Step 3: Cross multiply
325,259.20x = 487,961.70 × 125,561.80 - Step 4: Simplify right side
325,259.20x = 61,269,349,383.06 - Step 5: Solve for x
x = 61,269,349,383.06/325,259.20 - Step 6: Final answer
x = 188,370.84
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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.