Finding the Fourth Proportional to 239,276.16, 330,201.12 and 138,732.48
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Solution
The fourth proportional to 239,276.16, 330,201.12 and 138,732.48 is: 191,450.83
Step by Step Solution
- Step 1: Write the proportion equation
239,276.16 : 330,201.12 = 138,732.48 : x - Step 2: Convert to fraction form
239,276.16/330,201.12 = 138,732.48/x - Step 3: Cross multiply
239,276.16x = 330,201.12 × 138,732.48 - Step 4: Simplify right side
239,276.16x = 45,809,620,276.38 - Step 5: Solve for x
x = 45,809,620,276.38/239,276.16 - Step 6: Final answer
x = 191,450.83
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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.