Finding the Fourth Proportional to 415.68, 620.99 and 297.61
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Solution
The fourth proportional to 415.68, 620.99 and 297.61 is: 444.60
Step by Step Solution
- Step 1: Write the proportion equation
415.68 : 620.99 = 297.61 : x - Step 2: Convert to fraction form
415.68/620.99 = 297.61/x - Step 3: Cross multiply
415.68x = 620.99 × 297.61 - Step 4: Simplify right side
415.68x = 184,810.91 - Step 5: Solve for x
x = 184,810.91/415.68 - Step 6: Final answer
x = 444.60
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.