Finding the Fourth Proportional to 202,015.24, 278,781.58 and 121,488.88
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Solution
The fourth proportional to 202,015.24, 278,781.58 and 121,488.88 is: 167,654.98
Step by Step Solution
- Step 1: Write the proportion equation
202,015.24 : 278,781.58 = 121,488.88 : x - Step 2: Convert to fraction form
202,015.24/278,781.58 = 121,488.88/x - Step 3: Cross multiply
202,015.24x = 278,781.58 × 121,488.88 - Step 4: Simplify right side
202,015.24x = 33,868,861,918.83 - Step 5: Solve for x
x = 33,868,861,918.83/202,015.24 - Step 6: Final answer
x = 167,654.98
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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.