Finding the Fourth Proportional to 165,579.21, 248,291.06 and 76,777.29
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Solution
The fourth proportional to 165,579.21, 248,291.06 and 76,777.29 is: 115,129.88
Step by Step Solution
- Step 1: Write the proportion equation
165,579.21 : 248,291.06 = 76,777.29 : x - Step 2: Convert to fraction form
165,579.21/248,291.06 = 76,777.29/x - Step 3: Cross multiply
165,579.21x = 248,291.06 × 76,777.29 - Step 4: Simplify right side
165,579.21x = 19,063,114,334.14 - Step 5: Solve for x
x = 19,063,114,334.14/165,579.21 - Step 6: Final answer
x = 115,129.88
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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.