Finding the Fourth Proportional to 228.19, 314.92 and 178.99
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Solution
The fourth proportional to 228.19, 314.92 and 178.99 is: 247.02
Step by Step Solution
- Step 1: Write the proportion equation
228.19 : 314.92 = 178.99 : x - Step 2: Convert to fraction form
228.19/314.92 = 178.99/x - Step 3: Cross multiply
228.19x = 314.92 × 178.99 - Step 4: Simplify right side
228.19x = 56,367.53 - Step 5: Solve for x
x = 56,367.53/228.19 - Step 6: Final answer
x = 247.02
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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.