Finding the Fourth Proportional to 286,873.02, 395,874.21 and 159,556.80
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Solution
The fourth proportional to 286,873.02, 395,874.21 and 159,556.80 is: 220,182.51
Step by Step Solution
- Step 1: Write the proportion equation
286,873.02 : 395,874.21 = 159,556.80 : x - Step 2: Convert to fraction form
286,873.02/395,874.21 = 159,556.80/x - Step 3: Cross multiply
286,873.02x = 395,874.21 × 159,556.80 - Step 4: Simplify right side
286,873.02x = 63,164,422,150.13 - Step 5: Solve for x
x = 63,164,422,150.13/286,873.02 - Step 6: Final answer
x = 220,182.51
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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.