Finding the Fourth Proportional to 512,537.10, 768,817.80 and 157,554.20
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Solution
The fourth proportional to 512,537.10, 768,817.80 and 157,554.20 is: 236,335.03
Step by Step Solution
- Step 1: Write the proportion equation
512,537.10 : 768,817.80 = 157,554.20 : x - Step 2: Convert to fraction form
512,537.10/768,817.80 = 157,554.20/x - Step 3: Cross multiply
512,537.10x = 768,817.80 × 157,554.20 - Step 4: Simplify right side
512,537.10x = 121,130,469,580.67 - Step 5: Solve for x
x = 121,130,469,580.67/512,537.10 - Step 6: Final answer
x = 236,335.03
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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.