Finding the Fourth Proportional to 415.96, 574.09 and 258.75
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Solution
The fourth proportional to 415.96, 574.09 and 258.75 is: 357.12
Step by Step Solution
- Step 1: Write the proportion equation
415.96 : 574.09 = 258.75 : x - Step 2: Convert to fraction form
415.96/574.09 = 258.75/x - Step 3: Cross multiply
415.96x = 574.09 × 258.75 - Step 4: Simplify right side
415.96x = 148,545.14 - Step 5: Solve for x
x = 148,545.14/415.96 - Step 6: Final answer
x = 357.12
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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.