Finding the Fourth Proportional to 307,171.64, 423,879.18 and 171,201.08
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Solution
The fourth proportional to 307,171.64, 423,879.18 and 171,201.08 is: 236,247.63
Step by Step Solution
- Step 1: Write the proportion equation
307,171.64 : 423,879.18 = 171,201.08 : x - Step 2: Convert to fraction form
307,171.64/423,879.18 = 171,201.08/x - Step 3: Cross multiply
307,171.64x = 423,879.18 × 171,201.08 - Step 4: Simplify right side
307,171.64x = 72,568,573,405.51 - Step 5: Solve for x
x = 72,568,573,405.51/307,171.64 - Step 6: Final answer
x = 236,247.63
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.