Finding the Fourth Proportional to 207,052.97, 310,973.13 and 128,714.63
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Solution
The fourth proportional to 207,052.97, 310,973.13 and 128,714.63 is: 193,316.67
Step by Step Solution
- Step 1: Write the proportion equation
207,052.97 : 310,973.13 = 128,714.63 : x - Step 2: Convert to fraction form
207,052.97/310,973.13 = 128,714.63/x - Step 3: Cross multiply
207,052.97x = 310,973.13 × 128,714.63 - Step 4: Simplify right side
207,052.97x = 40,026,789,813.03 - Step 5: Solve for x
x = 40,026,789,813.03/207,052.97 - Step 6: Final answer
x = 193,316.67
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.