Finding the Fourth Proportional to 316,288.28, 436,434.72 and 188,936.84
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Solution
The fourth proportional to 316,288.28, 436,434.72 and 188,936.84 is: 260,707.09
Step by Step Solution
- Step 1: Write the proportion equation
316,288.28 : 436,434.72 = 188,936.84 : x - Step 2: Convert to fraction form
316,288.28/436,434.72 = 188,936.84/x - Step 3: Cross multiply
316,288.28x = 436,434.72 × 188,936.84 - Step 4: Simplify right side
316,288.28x = 82,458,596,863.08 - Step 5: Solve for x
x = 82,458,596,863.08/316,288.28 - Step 6: Final answer
x = 260,707.09
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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.