Finding the Fourth Proportional to 251,400.33, 346,919.63 and 138,201.21
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Solution
The fourth proportional to 251,400.33, 346,919.63 and 138,201.21 is: 190,710.62
Step by Step Solution
- Step 1: Write the proportion equation
251,400.33 : 346,919.63 = 138,201.21 : x - Step 2: Convert to fraction form
251,400.33/346,919.63 = 138,201.21/x - Step 3: Cross multiply
251,400.33x = 346,919.63 × 138,201.21 - Step 4: Simplify right side
251,400.33x = 47,944,711,947.75 - Step 5: Solve for x
x = 47,944,711,947.75/251,400.33 - Step 6: Final answer
x = 190,710.62
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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.