Finding the Fourth Proportional to 207,870.16, 286,863.44 and 126,174.80
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Solution
The fourth proportional to 207,870.16, 286,863.44 and 126,174.80 is: 174,122.81
Step by Step Solution
- Step 1: Write the proportion equation
207,870.16 : 286,863.44 = 126,174.80 : x - Step 2: Convert to fraction form
207,870.16/286,863.44 = 126,174.80/x - Step 3: Cross multiply
207,870.16x = 286,863.44 × 126,174.80 - Step 4: Simplify right side
207,870.16x = 36,194,937,169.31 - Step 5: Solve for x
x = 36,194,937,169.31/207,870.16 - Step 6: Final answer
x = 174,122.81
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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.