Finding the Fourth Proportional to 369.02, 509.11 and 228.99
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Solution
The fourth proportional to 369.02, 509.11 and 228.99 is: 315.92
Step by Step Solution
- Step 1: Write the proportion equation
369.02 : 509.11 = 228.99 : x - Step 2: Convert to fraction form
369.02/509.11 = 228.99/x - Step 3: Cross multiply
369.02x = 509.11 × 228.99 - Step 4: Simplify right side
369.02x = 116,580.53 - Step 5: Solve for x
x = 116,580.53/369.02 - Step 6: Final answer
x = 315.92
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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.