Finding the Fourth Proportional to 243,964.13, 336,672.18 and 136,544.09
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Solution
The fourth proportional to 243,964.13, 336,672.18 and 136,544.09 is: 188,431.78
Step by Step Solution
- Step 1: Write the proportion equation
243,964.13 : 336,672.18 = 136,544.09 : x - Step 2: Convert to fraction form
243,964.13/336,672.18 = 136,544.09/x - Step 3: Cross multiply
243,964.13x = 336,672.18 × 136,544.09 - Step 4: Simplify right side
243,964.13x = 45,970,594,763.06 - Step 5: Solve for x
x = 45,970,594,763.06/243,964.13 - Step 6: Final answer
x = 188,431.78
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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.