Finding the Fourth Proportional to 351.24, 484.78 and 201.90
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Solution
The fourth proportional to 351.24, 484.78 and 201.90 is: 278.66
Step by Step Solution
- Step 1: Write the proportion equation
351.24 : 484.78 = 201.90 : x - Step 2: Convert to fraction form
351.24/484.78 = 201.90/x - Step 3: Cross multiply
351.24x = 484.78 × 201.90 - Step 4: Simplify right side
351.24x = 97,877.08 - Step 5: Solve for x
x = 97,877.08/351.24 - Step 6: Final answer
x = 278.66
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.