Finding the Fourth Proportional to 199,205.80, 274,903.99 and 109,781.80
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Solution
The fourth proportional to 199,205.80, 274,903.99 and 109,781.80 is: 151,498.88
Step by Step Solution
- Step 1: Write the proportion equation
199,205.80 : 274,903.99 = 109,781.80 : x - Step 2: Convert to fraction form
199,205.80/274,903.99 = 109,781.80/x - Step 3: Cross multiply
199,205.80x = 274,903.99 × 109,781.80 - Step 4: Simplify right side
199,205.80x = 30,179,454,849.38 - Step 5: Solve for x
x = 30,179,454,849.38/199,205.80 - Step 6: Final answer
x = 151,498.88
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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.