Finding the Fourth Proportional to 215,842.08, 297,863.34 and 120,354.80
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Solution
The fourth proportional to 215,842.08, 297,863.34 and 120,354.80 is: 166,090.33
Step by Step Solution
- Step 1: Write the proportion equation
215,842.08 : 297,863.34 = 120,354.80 : x - Step 2: Convert to fraction form
215,842.08/297,863.34 = 120,354.80/x - Step 3: Cross multiply
215,842.08x = 297,863.34 × 120,354.80 - Step 4: Simplify right side
215,842.08x = 35,849,282,713.03 - Step 5: Solve for x
x = 35,849,282,713.03/215,842.08 - Step 6: Final answer
x = 166,090.33
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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.