Finding the Fourth Proportional to 251,399.10, 346,831.98 and 143,911.26
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Solution
The fourth proportional to 251,399.10, 346,831.98 and 143,911.26 is: 198,540.99
Step by Step Solution
- Step 1: Write the proportion equation
251,399.10 : 346,831.98 = 143,911.26 : x - Step 2: Convert to fraction form
251,399.10/346,831.98 = 143,911.26/x - Step 3: Cross multiply
251,399.10x = 346,831.98 × 143,911.26 - Step 4: Simplify right side
251,399.10x = 49,913,027,250.09 - Step 5: Solve for x
x = 49,913,027,250.09/251,399.10 - Step 6: Final answer
x = 198,540.99
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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.