Finding the Fourth Proportional to 277,309.12, 382,685.70 and 149,984.68
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Solution
The fourth proportional to 277,309.12, 382,685.70 and 149,984.68 is: 206,978.38
Step by Step Solution
- Step 1: Write the proportion equation
277,309.12 : 382,685.70 = 149,984.68 : x - Step 2: Convert to fraction form
277,309.12/382,685.70 = 149,984.68/x - Step 3: Cross multiply
277,309.12x = 382,685.70 × 149,984.68 - Step 4: Simplify right side
277,309.12x = 57,396,992,255.08 - Step 5: Solve for x
x = 57,396,992,255.08/277,309.12 - Step 6: Final answer
x = 206,978.38
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.