Finding the Fourth Proportional to 316,998.91, 437,476.41 and 188,013.75
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Solution
The fourth proportional to 316,998.91, 437,476.41 and 188,013.75 is: 259,469.59
Step by Step Solution
- Step 1: Write the proportion equation
316,998.91 : 437,476.41 = 188,013.75 : x - Step 2: Convert to fraction form
316,998.91/437,476.41 = 188,013.75/x - Step 3: Cross multiply
316,998.91x = 437,476.41 × 188,013.75 - Step 4: Simplify right side
316,998.91x = 82,251,577,253.19 - Step 5: Solve for x
x = 82,251,577,253.19/316,998.91 - Step 6: Final answer
x = 259,469.59
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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.