Finding the Fourth Proportional to 286,883.80, 430,163.70 and 109,396.60
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Solution
The fourth proportional to 286,883.80, 430,163.70 and 109,396.60 is: 164,033.12
Step by Step Solution
- Step 1: Write the proportion equation
286,883.80 : 430,163.70 = 109,396.60 : x - Step 2: Convert to fraction form
286,883.80/430,163.70 = 109,396.60/x - Step 3: Cross multiply
286,883.80x = 430,163.70 × 109,396.60 - Step 4: Simplify right side
286,883.80x = 47,058,446,223.42 - Step 5: Solve for x
x = 47,058,446,223.42/286,883.80 - Step 6: Final answer
x = 164,033.12
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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.