Finding the Fourth Proportional to 418.99, 577.65 and 294.79
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Solution
The fourth proportional to 418.99, 577.65 and 294.79 is: 406.42
Step by Step Solution
- Step 1: Write the proportion equation
418.99 : 577.65 = 294.79 : x - Step 2: Convert to fraction form
418.99/577.65 = 294.79/x - Step 3: Cross multiply
418.99x = 577.65 × 294.79 - Step 4: Simplify right side
418.99x = 170,285.44 - Step 5: Solve for x
x = 170,285.44/418.99 - Step 6: Final answer
x = 406.42
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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.