Finding the Fourth Proportional to 286,850.64, 430,275.68 and 87,170.48
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Solution
The fourth proportional to 286,850.64, 430,275.68 and 87,170.48 is: 130,755.63
Step by Step Solution
- Step 1: Write the proportion equation
286,850.64 : 430,275.68 = 87,170.48 : x - Step 2: Convert to fraction form
286,850.64/430,275.68 = 87,170.48/x - Step 3: Cross multiply
286,850.64x = 430,275.68 × 87,170.48 - Step 4: Simplify right side
286,850.64x = 37,507,337,557.93 - Step 5: Solve for x
x = 37,507,337,557.93/286,850.64 - Step 6: Final answer
x = 130,755.63
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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.