Finding the Fourth Proportional to 385.16, 577.07 and 201.99
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Solution
The fourth proportional to 385.16, 577.07 and 201.99 is: 302.65
Step by Step Solution
- Step 1: Write the proportion equation
385.16 : 577.07 = 201.99 : x - Step 2: Convert to fraction form
385.16/577.07 = 201.99/x - Step 3: Cross multiply
385.16x = 577.07 × 201.99 - Step 4: Simplify right side
385.16x = 116,565.42 - Step 5: Solve for x
x = 116,565.42/385.16 - Step 6: Final answer
x = 302.65
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.