Finding the Fourth Proportional to 351,791.12, 486,114.60 and 256,130.96
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Solution
The fourth proportional to 351,791.12, 486,114.60 and 256,130.96 is: 353,928.77
Step by Step Solution
- Step 1: Write the proportion equation
351,791.12 : 486,114.60 = 256,130.96 : x - Step 2: Convert to fraction form
351,791.12/486,114.60 = 256,130.96/x - Step 3: Cross multiply
351,791.12x = 486,114.60 × 256,130.96 - Step 4: Simplify right side
351,791.12x = 124,508,999,168.02 - Step 5: Solve for x
x = 124,508,999,168.02/351,791.12 - Step 6: Final answer
x = 353,928.77
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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.