Finding the Fourth Proportional to 173,715.16, 239,399.28 and 139,220.70
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Solution
The fourth proportional to 173,715.16, 239,399.28 and 139,220.70 is: 191,861.98
Step by Step Solution
- Step 1: Write the proportion equation
173,715.16 : 239,399.28 = 139,220.70 : x - Step 2: Convert to fraction form
173,715.16/239,399.28 = 139,220.70/x - Step 3: Cross multiply
173,715.16x = 239,399.28 × 139,220.70 - Step 4: Simplify right side
173,715.16x = 33,329,335,341.10 - Step 5: Solve for x
x = 33,329,335,341.10/173,715.16 - Step 6: Final answer
x = 191,861.98
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1.5x scale
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.