Finding the Fourth Proportional to 209,853.18, 289,587.15 and 119,197.44
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Solution
The fourth proportional to 209,853.18, 289,587.15 and 119,197.44 is: 164,486.65
Step by Step Solution
- Step 1: Write the proportion equation
209,853.18 : 289,587.15 = 119,197.44 : x - Step 2: Convert to fraction form
209,853.18/289,587.15 = 119,197.44/x - Step 3: Cross multiply
209,853.18x = 289,587.15 × 119,197.44 - Step 4: Simplify right side
209,853.18x = 34,518,046,936.90 - Step 5: Solve for x
x = 34,518,046,936.90/209,853.18 - Step 6: Final answer
x = 164,486.65
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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.