Finding the Fourth Proportional to 313,631.64, 432,716.31 and 177,643.98
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Solution
The fourth proportional to 313,631.64, 432,716.31 and 177,643.98 is: 245,094.68
Step by Step Solution
- Step 1: Write the proportion equation
313,631.64 : 432,716.31 = 177,643.98 : x - Step 2: Convert to fraction form
313,631.64/432,716.31 = 177,643.98/x - Step 3: Cross multiply
313,631.64x = 432,716.31 × 177,643.98 - Step 4: Simplify right side
313,631.64x = 76,869,447,519.31 - Step 5: Solve for x
x = 76,869,447,519.31/313,631.64 - Step 6: Final answer
x = 245,094.68
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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.