Finding the Fourth Proportional to 512,536.60, 768,817.05 and 157,553.70
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Solution
The fourth proportional to 512,536.60, 768,817.05 and 157,553.70 is: 236,334.28
Step by Step Solution
- Step 1: Write the proportion equation
512,536.60 : 768,817.05 = 157,553.70 : x - Step 2: Convert to fraction form
512,536.60/768,817.05 = 157,553.70/x - Step 3: Cross multiply
512,536.60x = 768,817.05 × 157,553.70 - Step 4: Simplify right side
512,536.60x = 121,129,970,850.59 - Step 5: Solve for x
x = 121,129,970,850.59/512,536.60 - Step 6: Final answer
x = 236,334.28
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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.