Finding the Fourth Proportional to 400,418.19, 552,639.24 and 228,336.53
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Solution
The fourth proportional to 400,418.19, 552,639.24 and 228,336.53 is: 315,139.84
Step by Step Solution
- Step 1: Write the proportion equation
400,418.19 : 552,639.24 = 228,336.53 : x - Step 2: Convert to fraction form
400,418.19/552,639.24 = 228,336.53/x - Step 3: Cross multiply
400,418.19x = 552,639.24 × 228,336.53 - Step 4: Simplify right side
400,418.19x = 126,187,723,640.24 - Step 5: Solve for x
x = 126,187,723,640.24/400,418.19 - Step 6: Final answer
x = 315,139.84
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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.