Finding the Fourth Proportional to 280,920.71, 387,627.09 and 160,067.09
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Solution
The fourth proportional to 280,920.71, 387,627.09 and 160,067.09 is: 220,867.80
Step by Step Solution
- Step 1: Write the proportion equation
280,920.71 : 387,627.09 = 160,067.09 : x - Step 2: Convert to fraction form
280,920.71/387,627.09 = 160,067.09/x - Step 3: Cross multiply
280,920.71x = 387,627.09 × 160,067.09 - Step 4: Simplify right side
280,920.71x = 62,046,340,670.28 - Step 5: Solve for x
x = 62,046,340,670.28/280,920.71 - Step 6: Final answer
x = 220,867.80
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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.