Finding the Fourth Proportional to 316,791.49, 475,188.84 and 80,134.39
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Solution
The fourth proportional to 316,791.49, 475,188.84 and 80,134.39 is: 120,201.99
Step by Step Solution
- Step 1: Write the proportion equation
316,791.49 : 475,188.84 = 80,134.39 : x - Step 2: Convert to fraction form
316,791.49/475,188.84 = 80,134.39/x - Step 3: Cross multiply
316,791.49x = 475,188.84 × 80,134.39 - Step 4: Simplify right side
316,791.49x = 38,078,967,828.21 - Step 5: Solve for x
x = 38,078,967,828.21/316,791.49 - Step 6: Final answer
x = 120,201.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.