Finding the Fourth Proportional to 263,725.60, 395,575.68 and 86,209.12
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Solution
The fourth proportional to 263,725.60, 395,575.68 and 86,209.12 is: 129,309.52
Step by Step Solution
- Step 1: Write the proportion equation
263,725.60 : 395,575.68 = 86,209.12 : x - Step 2: Convert to fraction form
263,725.60/395,575.68 = 86,209.12/x - Step 3: Cross multiply
263,725.60x = 395,575.68 × 86,209.12 - Step 4: Simplify right side
263,725.60x = 34,102,231,266.20 - Step 5: Solve for x
x = 34,102,231,266.20/263,725.60 - Step 6: Final answer
x = 129,309.52
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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.