Finding the Fourth Proportional to 286,869.28, 395,873.98 and 159,542.14
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Solution
The fourth proportional to 286,869.28, 395,873.98 and 159,542.14 is: 220,165.02
Step by Step Solution
- Step 1: Write the proportion equation
286,869.28 : 395,873.98 = 159,542.14 : x - Step 2: Convert to fraction form
286,869.28/395,873.98 = 159,542.14/x - Step 3: Cross multiply
286,869.28x = 395,873.98 × 159,542.14 - Step 4: Simplify right side
286,869.28x = 63,158,581,939.52 - Step 5: Solve for x
x = 63,158,581,939.52/286,869.28 - Step 6: Final answer
x = 220,165.02
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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.