Finding the Fourth Proportional to 207,130.19, 285,827.40 and 115,247.03
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Solution
The fourth proportional to 207,130.19, 285,827.40 and 115,247.03 is: 159,034.08
Step by Step Solution
- Step 1: Write the proportion equation
207,130.19 : 285,827.40 = 115,247.03 : x - Step 2: Convert to fraction form
207,130.19/285,827.40 = 115,247.03/x - Step 3: Cross multiply
207,130.19x = 285,827.40 × 115,247.03 - Step 4: Simplify right side
207,130.19x = 32,940,757,513.49 - Step 5: Solve for x
x = 32,940,757,513.49/207,130.19 - Step 6: Final answer
x = 159,034.08
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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.