Finding the Fourth Proportional to 512,546.40, 768,893.09 and 157,590.23
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Solution
The fourth proportional to 512,546.40, 768,893.09 and 157,590.23 is: 236,407.93
Step by Step Solution
- Step 1: Write the proportion equation
512,546.40 : 768,893.09 = 157,590.23 : x - Step 2: Convert to fraction form
512,546.40/768,893.09 = 157,590.23/x - Step 3: Cross multiply
512,546.40x = 768,893.09 × 157,590.23 - Step 4: Simplify right side
512,546.40x = 121,170,034,266.09 - Step 5: Solve for x
x = 121,170,034,266.09/512,546.40 - Step 6: Final answer
x = 236,407.93
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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.