Finding the Fourth Proportional to 228.68, 342.99 and 202.76
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Solution
The fourth proportional to 228.68, 342.99 and 202.76 is: 304.11
Step by Step Solution
- Step 1: Write the proportion equation
228.68 : 342.99 = 202.76 : x - Step 2: Convert to fraction form
228.68/342.99 = 202.76/x - Step 3: Cross multiply
228.68x = 342.99 × 202.76 - Step 4: Simplify right side
228.68x = 69,542.94 - Step 5: Solve for x
x = 69,542.94/228.68 - Step 6: Final answer
x = 304.11
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.