Finding the Fourth Proportional to 265,812.68, 398,741.16 and 76,272.68
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Solution
The fourth proportional to 265,812.68, 398,741.16 and 76,272.68 is: 114,415.37
Step by Step Solution
- Step 1: Write the proportion equation
265,812.68 : 398,741.16 = 76,272.68 : x - Step 2: Convert to fraction form
265,812.68/398,741.16 = 76,272.68/x - Step 3: Cross multiply
265,812.68x = 398,741.16 × 76,272.68 - Step 4: Simplify right side
265,812.68x = 30,413,056,899.51 - Step 5: Solve for x
x = 30,413,056,899.51/265,812.68 - Step 6: Final answer
x = 114,415.37
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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.