Finding the Fourth Proportional to 209,456.87, 314,233.91 and 69,206.99
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Solution
The fourth proportional to 209,456.87, 314,233.91 and 69,206.99 is: 103,826.55
Step by Step Solution
- Step 1: Write the proportion equation
209,456.87 : 314,233.91 = 69,206.99 : x - Step 2: Convert to fraction form
209,456.87/314,233.91 = 69,206.99/x - Step 3: Cross multiply
209,456.87x = 314,233.91 × 69,206.99 - Step 4: Simplify right side
209,456.87x = 21,747,184,025.63 - Step 5: Solve for x
x = 21,747,184,025.63/209,456.87 - Step 6: Final answer
x = 103,826.55
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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.