Finding the Fourth Proportional to 207,839.66, 286,794.35 and 117,190.23
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Solution
The fourth proportional to 207,839.66, 286,794.35 and 117,190.23 is: 161,708.77
Step by Step Solution
- Step 1: Write the proportion equation
207,839.66 : 286,794.35 = 117,190.23 : x - Step 2: Convert to fraction form
207,839.66/286,794.35 = 117,190.23/x - Step 3: Cross multiply
207,839.66x = 286,794.35 × 117,190.23 - Step 4: Simplify right side
207,839.66x = 33,609,495,839.20 - Step 5: Solve for x
x = 33,609,495,839.20/207,839.66 - Step 6: Final answer
x = 161,708.77
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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.