Finding the Fourth Proportional to 245,107.11, 338,247.99 and 137,677.20
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Solution
The fourth proportional to 245,107.11, 338,247.99 and 137,677.20 is: 189,994.64
Step by Step Solution
- Step 1: Write the proportion equation
245,107.11 : 338,247.99 = 137,677.20 : x - Step 2: Convert to fraction form
245,107.11/338,247.99 = 137,677.20/x - Step 3: Cross multiply
245,107.11x = 338,247.99 × 137,677.20 - Step 4: Simplify right side
245,107.11x = 46,569,036,168.83 - Step 5: Solve for x
x = 46,569,036,168.83/245,107.11 - Step 6: Final answer
x = 189,994.64
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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.