Finding the Fourth Proportional to 207,845.84, 286,638.96 and 136,199.84
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Solution
The fourth proportional to 207,845.84, 286,638.96 and 136,199.84 is: 187,832.39
Step by Step Solution
- Step 1: Write the proportion equation
207,845.84 : 286,638.96 = 136,199.84 : x - Step 2: Convert to fraction form
207,845.84/286,638.96 = 136,199.84/x - Step 3: Cross multiply
207,845.84x = 286,638.96 × 136,199.84 - Step 4: Simplify right side
207,845.84x = 39,040,180,489.77 - Step 5: Solve for x
x = 39,040,180,489.77/207,845.84 - Step 6: Final answer
x = 187,832.39
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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.