Finding the Fourth Proportional to 228,803.57, 315,715.77 and 126,828.99
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Solution
The fourth proportional to 228,803.57, 315,715.77 and 126,828.99 is: 175,005.63
Step by Step Solution
- Step 1: Write the proportion equation
228,803.57 : 315,715.77 = 126,828.99 : x - Step 2: Convert to fraction form
228,803.57/315,715.77 = 126,828.99/x - Step 3: Cross multiply
228,803.57x = 315,715.77 × 126,828.99 - Step 4: Simplify right side
228,803.57x = 40,041,912,236.17 - Step 5: Solve for x
x = 40,041,912,236.17/228,803.57 - Step 6: Final answer
x = 175,005.63
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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.