Finding the Fourth Proportional to 251,378.94, 346,909.11 and 138,201.90
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Solution
The fourth proportional to 251,378.94, 346,909.11 and 138,201.90 is: 190,722.02
Step by Step Solution
- Step 1: Write the proportion equation
251,378.94 : 346,909.11 = 138,201.90 : x - Step 2: Convert to fraction form
251,378.94/346,909.11 = 138,201.90/x - Step 3: Cross multiply
251,378.94x = 346,909.11 × 138,201.90 - Step 4: Simplify right side
251,378.94x = 47,943,498,129.31 - Step 5: Solve for x
x = 47,943,498,129.31/251,378.94 - Step 6: Final answer
x = 190,722.02
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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.