Finding the Fourth Proportional to 263,677.36, 395,417.28 and 86,136.64
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Solution
The fourth proportional to 263,677.36, 395,417.28 and 86,136.64 is: 129,172.70
Step by Step Solution
- Step 1: Write the proportion equation
263,677.36 : 395,417.28 = 86,136.64 : x - Step 2: Convert to fraction form
263,677.36/395,417.28 = 86,136.64/x - Step 3: Cross multiply
263,677.36x = 395,417.28 × 86,136.64 - Step 4: Simplify right side
263,677.36x = 34,059,915,897.14 - Step 5: Solve for x
x = 34,059,915,897.14/263,677.36 - Step 6: Final answer
x = 129,172.70
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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.