Finding the Fourth Proportional to 309,984.24, 427,524.48 and 218,407.08
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Solution
The fourth proportional to 309,984.24, 427,524.48 and 218,407.08 is: 301,222.97
Step by Step Solution
- Step 1: Write the proportion equation
309,984.24 : 427,524.48 = 218,407.08 : x - Step 2: Convert to fraction form
309,984.24/427,524.48 = 218,407.08/x - Step 3: Cross multiply
309,984.24x = 427,524.48 × 218,407.08 - Step 4: Simplify right side
309,984.24x = 93,374,373,305.32 - Step 5: Solve for x
x = 93,374,373,305.32/309,984.24 - Step 6: Final answer
x = 301,222.97
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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.