Finding the Fourth Proportional to 203,207.80, 280,398.99 and 112,541.38
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Solution
The fourth proportional to 203,207.80, 280,398.99 and 112,541.38 is: 155,291.72
Step by Step Solution
- Step 1: Write the proportion equation
203,207.80 : 280,398.99 = 112,541.38 : x - Step 2: Convert to fraction form
203,207.80/280,398.99 = 112,541.38/x - Step 3: Cross multiply
203,207.80x = 280,398.99 × 112,541.38 - Step 4: Simplify right side
203,207.80x = 31,556,489,285.21 - Step 5: Solve for x
x = 31,556,489,285.21/203,207.80 - Step 6: Final answer
x = 155,291.72
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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.