Finding the Fourth Proportional to 513,715.80, 770,576.10 and 181,291.80
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Solution
The fourth proportional to 513,715.80, 770,576.10 and 181,291.80 is: 271,938.55
Step by Step Solution
- Step 1: Write the proportion equation
513,715.80 : 770,576.10 = 181,291.80 : x - Step 2: Convert to fraction form
513,715.80/770,576.10 = 181,291.80/x - Step 3: Cross multiply
513,715.80x = 770,576.10 × 181,291.80 - Step 4: Simplify right side
513,715.80x = 139,699,128,205.98 - Step 5: Solve for x
x = 139,699,128,205.98/513,715.80 - Step 6: Final answer
x = 271,938.55
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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.