Finding the Fourth Proportional to 209,746.11, 289,439.67 and 119,090.18
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Solution
The fourth proportional to 209,746.11, 289,439.67 and 119,090.18 is: 164,338.79
Step by Step Solution
- Step 1: Write the proportion equation
209,746.11 : 289,439.67 = 119,090.18 : x - Step 2: Convert to fraction form
209,746.11/289,439.67 = 119,090.18/x - Step 3: Cross multiply
209,746.11x = 289,439.67 × 119,090.18 - Step 4: Simplify right side
209,746.11x = 34,469,420,952.24 - Step 5: Solve for x
x = 34,469,420,952.24/209,746.11 - Step 6: Final answer
x = 164,338.79
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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.