Finding the Fourth Proportional to 253,028.64, 349,201.76 and 139,873.26
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Solution
The fourth proportional to 253,028.64, 349,201.76 and 139,873.26 is: 193,037.39
Step by Step Solution
- Step 1: Write the proportion equation
253,028.64 : 349,201.76 = 139,873.26 : x - Step 2: Convert to fraction form
253,028.64/349,201.76 = 139,873.26/x - Step 3: Cross multiply
253,028.64x = 349,201.76 × 139,873.26 - Step 4: Simplify right side
253,028.64x = 48,843,987,869.57 - Step 5: Solve for x
x = 48,843,987,869.57/253,028.64 - Step 6: Final answer
x = 193,037.39
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1.5x scale
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.