Finding the Fourth Proportional to 251,372.64, 346,908.24 and 138,218.88
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Solution
The fourth proportional to 251,372.64, 346,908.24 and 138,218.88 is: 190,749.75
Step by Step Solution
- Step 1: Write the proportion equation
251,372.64 : 346,908.24 = 138,218.88 : x - Step 2: Convert to fraction form
251,372.64/346,908.24 = 138,218.88/x - Step 3: Cross multiply
251,372.64x = 346,908.24 × 138,218.88 - Step 4: Simplify right side
251,372.64x = 47,949,268,395.57 - Step 5: Solve for x
x = 47,949,268,395.57/251,372.64 - Step 6: Final answer
x = 190,749.75
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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.