Finding the Fourth Proportional to 512,455.35, 768,755.93 and 157,416.15
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Solution
The fourth proportional to 512,455.35, 768,755.93 and 157,416.15 is: 236,146.62
Step by Step Solution
- Step 1: Write the proportion equation
512,455.35 : 768,755.93 = 157,416.15 : x - Step 2: Convert to fraction form
512,455.35/768,755.93 = 157,416.15/x - Step 3: Cross multiply
512,455.35x = 768,755.93 × 157,416.15 - Step 4: Simplify right side
512,455.35x = 121,014,598,003.19 - Step 5: Solve for x
x = 121,014,598,003.19/512,455.35 - Step 6: Final answer
x = 236,146.62
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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.