Finding the Fourth Proportional to 286,661.10, 430,319.70 and 168,399.08
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Solution
The fourth proportional to 286,661.10, 430,319.70 and 168,399.08 is: 252,791.33
Step by Step Solution
- Step 1: Write the proportion equation
286,661.10 : 430,319.70 = 168,399.08 : x - Step 2: Convert to fraction form
286,661.10/430,319.70 = 168,399.08/x - Step 3: Cross multiply
286,661.10x = 430,319.70 × 168,399.08 - Step 4: Simplify right side
286,661.10x = 72,465,439,434.28 - Step 5: Solve for x
x = 72,465,439,434.28/286,661.10 - Step 6: Final answer
x = 252,791.33
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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.