Finding the Fourth Proportional to 209,506.19, 289,125.11 and 118,865.97
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Solution
The fourth proportional to 209,506.19, 289,125.11 and 118,865.97 is: 164,038.77
Step by Step Solution
- Step 1: Write the proportion equation
209,506.19 : 289,125.11 = 118,865.97 : x - Step 2: Convert to fraction form
209,506.19/289,125.11 = 118,865.97/x - Step 3: Cross multiply
209,506.19x = 289,125.11 × 118,865.97 - Step 4: Simplify right side
209,506.19x = 34,367,136,779.99 - Step 5: Solve for x
x = 34,367,136,779.99/209,506.19 - Step 6: Final answer
x = 164,038.77
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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.