Finding the Fourth Proportional to 209,313.20, 313,968.36 and 69,083.12
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Solution
The fourth proportional to 209,313.20, 313,968.36 and 69,083.12 is: 103,624.20
Step by Step Solution
- Step 1: Write the proportion equation
209,313.20 : 313,968.36 = 69,083.12 : x - Step 2: Convert to fraction form
209,313.20/313,968.36 = 69,083.12/x - Step 3: Cross multiply
209,313.20x = 313,968.36 × 69,083.12 - Step 4: Simplify right side
209,313.20x = 21,689,913,890.08 - Step 5: Solve for x
x = 21,689,913,890.08/209,313.20 - Step 6: Final answer
x = 103,624.20
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.