Finding the Fourth Proportional to 251,394.64, 346,915.74 and 138,216.52
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Solution
The fourth proportional to 251,394.64, 346,915.74 and 138,216.52 is: 190,733.92
Step by Step Solution
- Step 1: Write the proportion equation
251,394.64 : 346,915.74 = 138,216.52 : x - Step 2: Convert to fraction form
251,394.64/346,915.74 = 138,216.52/x - Step 3: Cross multiply
251,394.64x = 346,915.74 × 138,216.52 - Step 4: Simplify right side
251,394.64x = 47,949,486,316.02 - Step 5: Solve for x
x = 47,949,486,316.02/251,394.64 - Step 6: Final answer
x = 190,733.92
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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.