Finding the Fourth Proportional to 245,440.36, 338,695.32 and 138,003.99
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Solution
The fourth proportional to 245,440.36, 338,695.32 and 138,003.99 is: 190,438.54
Step by Step Solution
- Step 1: Write the proportion equation
245,440.36 : 338,695.32 = 138,003.99 : x - Step 2: Convert to fraction form
245,440.36/338,695.32 = 138,003.99/x - Step 3: Cross multiply
245,440.36x = 338,695.32 × 138,003.99 - Step 4: Simplify right side
245,440.36x = 46,741,304,801.73 - Step 5: Solve for x
x = 46,741,304,801.73/245,440.36 - Step 6: Final answer
x = 190,438.54
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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.