Finding the Fourth Proportional to 263,775.84, 395,679.84 and 86,301.60
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Solution
The fourth proportional to 263,775.84, 395,679.84 and 86,301.60 is: 129,457.66
Step by Step Solution
- Step 1: Write the proportion equation
263,775.84 : 395,679.84 = 86,301.60 : x - Step 2: Convert to fraction form
263,775.84/395,679.84 = 86,301.60/x - Step 3: Cross multiply
263,775.84x = 395,679.84 × 86,301.60 - Step 4: Simplify right side
263,775.84x = 34,147,803,279.74 - Step 5: Solve for x
x = 34,147,803,279.74/263,775.84 - Step 6: Final answer
x = 129,457.66
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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.